diff --git a/bridges/ABCTabsBridge.php b/bridges/ABCTabsBridge.php
index 51a767a..741d92c 100644
--- a/bridges/ABCTabsBridge.php
+++ b/bridges/ABCTabsBridge.php
@@ -1,10 +1,10 @@
 <?php
 class ABCTabsBridge extends BridgeAbstract{
 
-	public $maintainer = "kranack";
-	public $name = "ABC Tabs Bridge";
-	public $uri = "http://www.abc-tabs.com/";
-	public $description = "Returns 22 newest tabs";
+	const MAINTAINER = "kranack";
+	const NAME = "ABC Tabs Bridge";
+	const URI = "http://www.abc-tabs.com/";
+	const DESCRIPTION = "Returns 22 newest tabs";
 
 	public function collectData(){
 		$html = '';
diff --git a/bridges/AcrimedBridge.php b/bridges/AcrimedBridge.php
index a0bf455..2f77a4c 100644
--- a/bridges/AcrimedBridge.php
+++ b/bridges/AcrimedBridge.php
@@ -2,10 +2,10 @@
 class AcrimedBridge extends RssExpander{
 
 
-	public $maintainer = "qwertygc";
-	public $name = "Acrimed Bridge";
-	public $uri = "http://www.acrimed.org/";
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "qwertygc";
+	const NAME = "Acrimed Bridge";
+	const URI = "http://www.acrimed.org/";
+	const DESCRIPTION = "Returns the newest articles.";
 
        public function collectData(){
 
diff --git a/bridges/AllocineFRBridge.php b/bridges/AllocineFRBridge.php
index f180f5d..c7960be 100644
--- a/bridges/AllocineFRBridge.php
+++ b/bridges/AllocineFRBridge.php
@@ -2,11 +2,11 @@
 class AllocineFRBridge extends BridgeAbstract{
 
 
-    public $maintainer = "superbaillot.net";
-    public $name = "Allo Cine Bridge";
-    public $uri = "http://www.allocine.fr";
-    public $description = "Bridge for allocine.fr";
-    public $parameters = array( array(
+    const MAINTAINER = "superbaillot.net";
+    const NAME = "Allo Cine Bridge";
+    const URI = "http://www.allocine.fr";
+    const DESCRIPTION = "Bridge for allocine.fr";
+    const PARAMETERS = array( array(
         'category'=>array(
             'name'=>'category',
             'type'=>'list',
@@ -38,10 +38,10 @@ class AllocineFRBridge extends BridgeAbstract{
     }
 
     public function getName(){
-        return $this->name.' : '
+        return self::NAME.' : '
             .array_search(
                 $this->getInput('category'),
-                $this->parameters[$this->queriedContext]['category']['values']
+                self::PARAMETERS[$this->queriedContext]['category']['values']
             );
     }
 
@@ -52,7 +52,7 @@ class AllocineFRBridge extends BridgeAbstract{
 
         $category=array_search(
                 $this->getInput('category'),
-                $this->parameters[$this->queriedContext]['category']['values']
+                self::PARAMETERS[$this->queriedContext]['category']['values']
             );
 
 
diff --git a/bridges/AnimeUltimeBridge.php b/bridges/AnimeUltimeBridge.php
index 629f459..301475f 100644
--- a/bridges/AnimeUltimeBridge.php
+++ b/bridges/AnimeUltimeBridge.php
@@ -1,11 +1,11 @@
 <?php
 class AnimeUltimeBridge extends BridgeAbstract {
 
-        public $maintainer = 'ORelio';
-        public $name = 'Anime-Ultime';
-        public $uri = 'http://www.anime-ultime.net/';
-        public $description = 'Returns the 10 newest releases posted on Anime-Ultime';
-        public $parameters = array( array(
+        const MAINTAINER = 'ORelio';
+        const NAME = 'Anime-Ultime';
+        const URI = 'http://www.anime-ultime.net/';
+        const DESCRIPTION = 'Returns the 10 newest releases posted on Anime-Ultime';
+        const PARAMETERS = array( array(
           'type'=>array(
             'name'=>'Type',
             'type'=>'list',
@@ -25,7 +25,7 @@ class AnimeUltimeBridge extends BridgeAbstract {
         //Add type filter if provided
         $typeFilter = array_search(
             $this->getInput('type'),
-            $this->parameters[$this->queriedContext]['type']['values']
+            self::PARAMETERS[$this->queriedContext]['type']['values']
         );
 
         //Build date and filters for making requests
@@ -37,7 +37,7 @@ class AnimeUltimeBridge extends BridgeAbstract {
         foreach (array($thismonth, $lastmonth) as $requestFilter) {
 
             //Retrive page contents
-            $url = $this->uri.'history-0-1/'.$requestFilter;
+            $url = self::URI.'history-0-1/'.$requestFilter;
             $html = $this->getSimpleHTMLDOM($url)
                 or $this->returnServerError('Could not request Anime-Ultime: '.$url);
 
@@ -58,7 +58,7 @@ class AnimeUltimeBridge extends BridgeAbstract {
 
                         //Retrieve metadata from table columns
                         $item_link_element = $release->find('td', 0)->find('a', 0);
-                        $item_uri = $this->uri.$item_link_element->href;
+                        $item_uri = self::URI.$item_link_element->href;
                         $item_name = html_entity_decode($item_link_element->plaintext);
                         $item_episode = html_entity_decode(str_pad($release->find('td', 1)->plaintext, 2, '0', STR_PAD_LEFT));
                         $item_fansub = $release->find('td', 2)->plaintext;
@@ -79,7 +79,7 @@ class AnimeUltimeBridge extends BridgeAbstract {
                                 strpos($item_description, '<div id="table">')
                             );
                             $item_description = str_replace(
-                                'src="images', 'src="'.$this->uri.'images',
+                                'src="images', 'src="'.self::URI.'images',
                                 $item_description
                             );
                             $item_description = str_replace("\r", '', $item_description);
@@ -109,7 +109,7 @@ class AnimeUltimeBridge extends BridgeAbstract {
     public function getName() {
         $typeFilter = array_search(
             $this->getInput('type'),
-            $this->parameters[$this->queriedContext]['type']['values']
+            self::PARAMETERS[$this->queriedContext]['type']['values']
         );
 
         return 'Latest '.$typeFilter.' - Anime-Ultime Bridge';
diff --git a/bridges/ArstechnicaBridge.php b/bridges/ArstechnicaBridge.php
index d2a62b2..2620715 100644
--- a/bridges/ArstechnicaBridge.php
+++ b/bridges/ArstechnicaBridge.php
@@ -3,10 +3,10 @@
 #error_reporting(E_ALL);
 class ArstechnicaBridge extends BridgeAbstract {
 
-  public $maintainer = "prysme";
-  public $name = "ArstechnicaBridge";
-  public $uri = "http://arstechnica.com";
-  public $description = "The PC enthusiast's resource. Power users and the tools they love, without computing religion";
+  const MAINTAINER = "prysme";
+  const NAME = "ArstechnicaBridge";
+  const URI = "http://arstechnica.com";
+  const DESCRIPTION = "The PC enthusiast's resource. Power users and the tools they love, without computing religion";
 
   function StripWithDelimiters($string, $start, $end) {
     while (strpos($string, $start) !== false) {
diff --git a/bridges/Arte7Bridge.php b/bridges/Arte7Bridge.php
index 19e039f..7080648 100644
--- a/bridges/Arte7Bridge.php
+++ b/bridges/Arte7Bridge.php
@@ -1,11 +1,11 @@
     <?php
     class Arte7Bridge extends BridgeAbstract{
 
-        public $maintainer = "mitsukarenai";
-        public $name = "Arte +7";
-        public $uri = "http://www.arte.tv/";
-        public $description = "Returns newest videos from ARTE +7";
-        public $parameters = array(
+        const MAINTAINER = "mitsukarenai";
+        const NAME = "Arte +7";
+        const URI = "http://www.arte.tv/";
+        const DESCRIPTION = "Returns newest videos from ARTE +7";
+        const PARAMETERS = array(
             'Catégorie (Français)' => array(
                 'catfr'=>array(
                     'type'=>'list',
@@ -56,7 +56,7 @@
         break;
       }
 
-      $url = $this->uri.'guide/'.$lang.'/plus7/'.$category;
+      $url = self::URI.'guide/'.$lang.'/plus7/'.$category;
       $input = $this->getContents($url) or die('Could not request ARTE.');
       if(strpos($input, 'categoryVideoSet') !== FALSE){
         $input = explode('categoryVideoSet: ', $input);
diff --git a/bridges/AskfmBridge.php b/bridges/AskfmBridge.php
index 7a8b9e2..a4c22df 100644
--- a/bridges/AskfmBridge.php
+++ b/bridges/AskfmBridge.php
@@ -1,11 +1,11 @@
 <?php
 class AskfmBridge extends BridgeAbstract{
 
-    public $maintainer = "az5he6ch";
-    public $name = "Ask.fm Answers";
-    public $uri = "http://ask.fm/";
-    public $description = "Returns answers from an Ask.fm user";
-    public $parameters = array(
+    const MAINTAINER = "az5he6ch";
+    const NAME = "Ask.fm Answers";
+    const URI = "http://ask.fm/";
+    const DESCRIPTION = "Returns answers from an Ask.fm user";
+    const PARAMETERS = array(
         'Ask.fm username'=>array(
             'u'=>array(
                 'name'=>'Username',
@@ -20,7 +20,7 @@ class AskfmBridge extends BridgeAbstract{
 
         foreach($html->find('div.streamItem-answer') as $element) {
             $item = array();
-            $item['uri'] = $this->uri.$element->find('a.streamItemsAge',0)->href;
+            $item['uri'] = self::URI.$element->find('a.streamItemsAge',0)->href;
             $question = trim($element->find('h1.streamItemContent-question',0)->innertext);
             $item['title'] = trim(htmlspecialchars_decode($element->find('h1.streamItemContent-question',0)->plaintext, ENT_QUOTES));
             $answer = trim($element->find('p.streamItemContent-answer',0)->innertext);
@@ -35,18 +35,18 @@ class AskfmBridge extends BridgeAbstract{
             }
             $content = '<p>' . $question . '</p><p>' . $answer . '</p><p>' . $visual . '</p>';
             // Fix relative links without breaking // scheme used by YouTube stuff
-            $content = preg_replace('#href="\/(?!\/)#', 'href="'.$this->uri,$content);
+            $content = preg_replace('#href="\/(?!\/)#', 'href="'.self::URI,$content);
             $item['content'] = $content;
             $this->items[] = $item;
         }
     }
 
     public function getName(){
-        return $this->name.' : '.$this->getInput('u');
+        return self::NAME.' : '.$this->getInput('u');
     }
 
     public function getURI(){
-        return $this->uri.urlencode($this->getInput('u')).'/answers/more?page=0';
+        return self::URI.urlencode($this->getInput('u')).'/answers/more?page=0';
     }
 
     public function getCacheDuration(){
diff --git a/bridges/BandcampBridge.php b/bridges/BandcampBridge.php
index 4e11091..77b88e6 100644
--- a/bridges/BandcampBridge.php
+++ b/bridges/BandcampBridge.php
@@ -1,11 +1,11 @@
 <?php
 class BandcampBridge extends BridgeAbstract{
 
-    public $maintainer = "sebsauvage";
-    public $name = "Bandcamp Tag";
-    public $uri = "http://bandcamp.com/";
-    public $description = "New bandcamp release by tag";
-    public $parameters = array( array(
+    const MAINTAINER = "sebsauvage";
+    const NAME = "Bandcamp Tag";
+    const URI = "http://bandcamp.com/";
+    const DESCRIPTION = "New bandcamp release by tag";
+    const PARAMETERS = array( array(
         'tag'=>array(
             'name'=>'tag',
             'type'=>'text',
@@ -33,7 +33,7 @@ class BandcampBridge extends BridgeAbstract{
     }
 
     public function getURI(){
-        return $this->uri.'tag/'.urlencode($this->getInput('tag')).'?sort_field=date';
+        return self::URI.'tag/'.urlencode($this->getInput('tag')).'?sort_field=date';
     }
 
     public function getName(){
diff --git a/bridges/BastaBridge.php b/bridges/BastaBridge.php
index a7a7c82..be36662 100644
--- a/bridges/BastaBridge.php
+++ b/bridges/BastaBridge.php
@@ -1,17 +1,17 @@
 <?php
 class BastaBridge extends BridgeAbstract{
-	public $maintainer = "qwertygc";
-	public $name = "Bastamag Bridge";
-	public $uri = "http://www.bastamag.net/";
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "qwertygc";
+	const NAME = "Bastamag Bridge";
+	const URI = "http://www.bastamag.net/";
+	const DESCRIPTION = "Returns the newest articles.";
 
 	public function collectData(){
 		// Replaces all relative image URLs by absolute URLs. Relative URLs always start with 'local/'!
 		function ReplaceImageUrl($content){
-			return preg_replace('/src=["\']{1}([^"\']+)/ims', 'src=\''.$this->uri.'$1\'', $content);
+			return preg_replace('/src=["\']{1}([^"\']+)/ims', 'src=\''.self::URI.'$1\'', $content);
 		}
 
-        $html = $this->getSimpleHTMLDOM($this->uri.'spip.php?page=backend')
+        $html = $this->getSimpleHTMLDOM(self::URI.'spip.php?page=backend')
             or $this->returnServerError('Could not request Bastamag.');
 		$limit = 0;
 
diff --git a/bridges/BlaguesDeMerdeBridge.php b/bridges/BlaguesDeMerdeBridge.php
index e0f65e1..0392bed 100644
--- a/bridges/BlaguesDeMerdeBridge.php
+++ b/bridges/BlaguesDeMerdeBridge.php
@@ -1,14 +1,14 @@
 <?php
 class BlaguesDeMerdeBridge extends BridgeAbstract{
 
-    public $maintainer = "superbaillot.net";
-    public $name = "Blagues De Merde";
-    public $uri = "http://www.blaguesdemerde.fr/";
-    public $description = "Blagues De Merde";
+    const MAINTAINER = "superbaillot.net";
+    const NAME = "Blagues De Merde";
+    const URI = "http://www.blaguesdemerde.fr/";
+    const DESCRIPTION = "Blagues De Merde";
 
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Could not request BDM.');
 
         foreach($html->find('article.joke_contener') as $element) {
diff --git a/bridges/BooruprojectBridge.php b/bridges/BooruprojectBridge.php
index eb3f5ac..635aae5 100644
--- a/bridges/BooruprojectBridge.php
+++ b/bridges/BooruprojectBridge.php
@@ -1,12 +1,12 @@
 <?php
 class BooruprojectBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Booruproject";
-	public $uri = "http://booru.org/";
-	public $description = "Returns images from given page and booruproject instance (****.booru.org)";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Booruproject";
+	const URI = "http://booru.org/";
+	const DESCRIPTION = "Returns images from given page and booruproject instance (****.booru.org)";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
           'i'=>array(
             'name'=>'instance (required)',
             'required'=>true
diff --git a/bridges/CADBridge.php b/bridges/CADBridge.php
index 8073f86..47ff165 100644
--- a/bridges/CADBridge.php
+++ b/bridges/CADBridge.php
@@ -1,9 +1,9 @@
 <?php
 class CADBridge extends BridgeAbstract{
-	public $maintainer = "nyutag";
-	public $name = "CAD Bridge";
-	public $uri = "http://www.cad-comic.com/";
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "nyutag";
+	const NAME = "CAD Bridge";
+	const URI = "http://www.cad-comic.com/";
+	const DESCRIPTION = "Returns the newest articles.";
 
 	private function CADExtractContent($url) {
 		$html3 = $this->getSimpleHTMLDOM($url);
diff --git a/bridges/CNETBridge.php b/bridges/CNETBridge.php
index e951976..6d5b8b5 100644
--- a/bridges/CNETBridge.php
+++ b/bridges/CNETBridge.php
@@ -1,12 +1,12 @@
 <?php
 class CNETBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'CNET News';
-    public $uri = 'http://www.cnet.com/';
-    public $description = 'Returns the newest articles. <br /> You may specify a topic found in some section URLs, else all topics are selected.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'CNET News';
+    const URI = 'http://www.cnet.com/';
+    const DESCRIPTION = 'Returns the newest articles. <br /> You may specify a topic found in some section URLs, else all topics are selected.';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'topic'=>array('name'=>'Topic name')
     ));
 
@@ -37,7 +37,7 @@ class CNETBridge extends BridgeAbstract {
             return $article_html;
         }
 
-        $pageUrl = $this->uri.(empty($this->getInput('topic')) ? '' : 'topics/'.$this->getInput('topic').'/');
+        $pageUrl = self::URI.(empty($this->getInput('topic')) ? '' : 'topics/'.$this->getInput('topic').'/');
         $html = $this->getSimpleHTMLDOM($pageUrl) or $this->returnServerError('Could not request CNET: '.$pageUrl);
         $limit = 0;
 
@@ -45,7 +45,7 @@ class CNETBridge extends BridgeAbstract {
             if ($limit < 8) {
 
                 $article_title = trim($element->find('h2', 0)->plaintext);
-                $article_uri = $this->uri.($element->find('a', 0)->href);
+                $article_uri = self::URI.($element->find('a', 0)->href);
                 $article_timestamp = strtotime($element->find('time.assetTime', 0)->plaintext);
                 $article_author = trim($element->find('a[rel=author]', 0)->plaintext);
 
diff --git a/bridges/CastorusBridge.php b/bridges/CastorusBridge.php
index 35736b8..2355542 100644
--- a/bridges/CastorusBridge.php
+++ b/bridges/CastorusBridge.php
@@ -1,11 +1,11 @@
 <?php
 class CastorusBridge extends BridgeAbstract {
-	public $maintainer = "logmanoriginal";
-	public $name = "Castorus Bridge";
-	public $uri = 'http://www.castorus.com';
-	public $description = "Returns the latest changes";
+	const MAINTAINER = "logmanoriginal";
+	const NAME = "Castorus Bridge";
+	const URI = 'http://www.castorus.com';
+	const DESCRIPTION = "Returns the latest changes";
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'Get latest changes' => array(),
         'Get latest changes via ZIP code' => array(
             'zip'=>array(
@@ -44,7 +44,7 @@ class CastorusBridge extends BridgeAbstract {
 		if(!$url)
 			$this->returnServerError('Cannot find url!');
 
-		return $this->uri . $url->href;
+		return self::URI . $url->href;
 	}
 
 	// Extracts the time from an activity
@@ -77,10 +77,10 @@ class CastorusBridge extends BridgeAbstract {
         $zip_filter = trim($this->getInput('zip'));
         $city_filter = trim($this->getInput('city'));
 
-		$html = $this->getSimpleHTMLDOM($this->uri);
+		$html = $this->getSimpleHTMLDOM(self::URI);
 
 		if(!$html)
-			$this->returnServerError('Could not load data from ' . $this->uri . '!');
+			$this->returnServerError('Could not load data from ' . self::URI . '!');
 
 		$activities = $html->find('div#activite/li');
 
diff --git a/bridges/CollegeDeFranceBridge.php b/bridges/CollegeDeFranceBridge.php
index 3d9a21c..a6ae296 100644
--- a/bridges/CollegeDeFranceBridge.php
+++ b/bridges/CollegeDeFranceBridge.php
@@ -1,10 +1,10 @@
 <?php
 class CollegeDeFranceBridge extends BridgeAbstract{
 
-	public $maintainer = "pit-fgfjiudghdf";
-	public $name = "CollegeDeFrance";
-	public $uri = "http://www.college-de-france.fr/";
-	public $description = "Returns the latest audio and video from CollegeDeFrance";
+	const MAINTAINER = "pit-fgfjiudghdf";
+	const NAME = "CollegeDeFrance";
+	const URI = "http://www.college-de-france.fr/";
+	const DESCRIPTION = "Returns the latest audio and video from CollegeDeFrance";
 
 	public function collectData(){
 		$months = array(
@@ -30,7 +30,7 @@ class CollegeDeFranceBridge extends BridgeAbstract{
 		 * 	</a>
 		 * </li>
 		 */
-        $html = $this->getSimpleHTMLDOM($this->uri.'components/search-audiovideo.jsp?fulltext=&siteid=1156951719600&lang=FR&type=all')
+        $html = $this->getSimpleHTMLDOM(self::URI.'components/search-audiovideo.jsp?fulltext=&siteid=1156951719600&lang=FR&type=all')
             or $this->returnServerError('Could not request CollegeDeFrance.');
 		foreach($html->find('a[data-target]') as $element) {
 			$item = array();
@@ -62,7 +62,7 @@ class CollegeDeFranceBridge extends BridgeAbstract{
             }
             $item['timestamp'] = $d->format('U');
 			$item['content'] =  $element->find('.lecturer', 0)->innertext . ' - ' . $element->find('.title', 0)->innertext;
-			$item['uri'] = $this->uri . $element->href;
+			$item['uri'] = self::URI . $element->href;
 			$this->items[] = $item;
 		}
 	}
diff --git a/bridges/CommonDreamsBridge.php b/bridges/CommonDreamsBridge.php
index 23627e3..446a6df 100644
--- a/bridges/CommonDreamsBridge.php
+++ b/bridges/CommonDreamsBridge.php
@@ -1,10 +1,10 @@
 <?php
 class CommonDreamsBridge extends BridgeAbstract{
 
-	public $maintainer = "nyutag";
-	public $name = "CommonDreams Bridge";
-	public $uri = "http://www.commondreams.org/";
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "nyutag";
+	const NAME = "CommonDreams Bridge";
+	const URI = "http://www.commondreams.org/";
+	const DESCRIPTION = "Returns the newest articles.";
 
 	private function CommonDreamsExtractContent($url) {
 		$html3 = $this->getSimpleHTMLDOM($url);
diff --git a/bridges/CopieDoubleBridge.php b/bridges/CopieDoubleBridge.php
index 6e787db..aa04962 100644
--- a/bridges/CopieDoubleBridge.php
+++ b/bridges/CopieDoubleBridge.php
@@ -1,13 +1,13 @@
 <?php
 class CopieDoubleBridge extends BridgeAbstract{
 
-    public $maintainer = "superbaillot.net";
-    public $name = "CopieDouble";
-    public $uri = "http://www.copie-double.com/";
-    public $description = "CopieDouble";
+    const MAINTAINER = "superbaillot.net";
+    const NAME = "CopieDouble";
+    const URI = "http://www.copie-double.com/";
+    const DESCRIPTION = "CopieDouble";
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Could not request CopieDouble.');
         $table = $html->find('table table', 2);
 
@@ -26,10 +26,10 @@ class CopieDoubleBridge extends BridgeAbstract{
             elseif(strpos($element->innertext, "/images/suivant.gif") === false)
             {
                 $a=$element->find("a", 0);
-                $item['uri'] = $this->uri . $a->href;
+                $item['uri'] = self::URI . $a->href;
 
-                $content = str_replace('src="/', 'src="/'.$this->uri,$element->find("td", 0)->innertext);
-                $content = str_replace('href="/', 'href="'.$this->uri,$content);
+                $content = str_replace('src="/', 'src="/'.self::URI,$element->find("td", 0)->innertext);
+                $content = str_replace('href="/', 'href="'.self::URI,$content);
                 $item['content'] = $content;
                 $this->items[] = $item;
             }
diff --git a/bridges/CourrierInternationalBridge.php b/bridges/CourrierInternationalBridge.php
index 09d1aa6..f91916f 100644
--- a/bridges/CourrierInternationalBridge.php
+++ b/bridges/CourrierInternationalBridge.php
@@ -1,14 +1,14 @@
 <?php
 class CourrierInternationalBridge extends BridgeAbstract{
 
-    public $maintainer = "teromene";
-    public $name = "Courrier International Bridge";
-    public $uri = "http://CourrierInternational.com/";
-    public $description = "Courrier International bridge";
+    const MAINTAINER = "teromene";
+    const NAME = "Courrier International Bridge";
+    const URI = "http://CourrierInternational.com/";
+    const DESCRIPTION = "Courrier International bridge";
 
     public function collectData(){
 
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Error.');
 
         $element = $html->find("article");
@@ -22,7 +22,7 @@ class CourrierInternationalBridge extends BridgeAbstract{
             $item['uri'] = $article->parent->getAttribute("href");
 
             if(strpos($item['uri'], "http") === FALSE) {
-                $item['uri'] = $this->uri.$item['uri'];
+                $item['uri'] = self::URI.$item['uri'];
             }
 
             $page = $this->getSimpleHTMLDOM($item['uri']);
diff --git a/bridges/CpasbienBridge.php b/bridges/CpasbienBridge.php
index c9b7021..454d239 100644
--- a/bridges/CpasbienBridge.php
+++ b/bridges/CpasbienBridge.php
@@ -1,12 +1,12 @@
 <?php
 class CpasbienBridge extends HttpCachingBridgeAbstract{
 
-    public $maintainer = "lagaisse";
-    public $name = "Cpasbien Bridge";
-    public $uri = "http://www.cpasbien.io";
-    public $description = "Returns latest torrents from a request query";
+    const MAINTAINER = "lagaisse";
+    const NAME = "Cpasbien Bridge";
+    const URI = "http://www.cpasbien.io";
+    const DESCRIPTION = "Returns latest torrents from a request query";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'q'=>array(
             'name'=>'Search',
             'required'=>true,
@@ -16,7 +16,7 @@ class CpasbienBridge extends HttpCachingBridgeAbstract{
 
     public function collectData(){
         $request = str_replace(" ","-",trim($this->getInput('q')));
-        $html = $this->getSimpleHTMLDOM($this->uri.'/recherche/'.urlencode($request).'.html')
+        $html = $this->getSimpleHTMLDOM(self::URI.'/recherche/'.urlencode($request).'.html')
             or $this->returnServerError('No results for this query.');
 
         foreach ($html->find('#gauche',0)->find('div') as $episode) {
@@ -40,7 +40,7 @@ class CpasbienBridge extends HttpCachingBridgeAbstract{
                 }
 
                 $item['id'] = $episode->find('a', 0)->getAttribute('href');
-                $item['uri'] = $this->uri . $htmlepisode->find('#telecharger',0)->getAttribute('href');
+                $item['uri'] = self::URI . $htmlepisode->find('#telecharger',0)->getAttribute('href');
                 $this->items[] = $item;
             }
         }
@@ -48,7 +48,7 @@ class CpasbienBridge extends HttpCachingBridgeAbstract{
 
 
     public function getName(){
-        return $this->getInput('q').' : '.$this->name;
+        return $this->getInput('q').' : '.self::NAME;
     }
 
     public function getCacheDuration(){
diff --git a/bridges/CryptomeBridge.php b/bridges/CryptomeBridge.php
index 072fbd5..840c2ae 100644
--- a/bridges/CryptomeBridge.php
+++ b/bridges/CryptomeBridge.php
@@ -1,12 +1,12 @@
 <?php
 class CryptomeBridge extends BridgeAbstract{
 
-    public $maintainer = "BoboTiG";
-    public $name = "Cryptome";
-    public $uri = "https://cryptome.org/";
-    public $description = "Returns the N most recent documents.";
+    const MAINTAINER = "BoboTiG";
+    const NAME = "Cryptome";
+    const URI = "https://cryptome.org/";
+    const DESCRIPTION = "Returns the N most recent documents.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'n'=>array(
             'name'=>'number of elements',
             'type'=>'number',
@@ -16,7 +16,7 @@ class CryptomeBridge extends BridgeAbstract{
     ));
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Could not request Cryptome.');
         if (!empty($this->getInput('n'))) {   /* number of documents */
             $num = min($this->getInput('n'), 20);
@@ -26,9 +26,9 @@ class CryptomeBridge extends BridgeAbstract{
         foreach($html->find('pre') as $element) {
             for ( $i = 0; $i < $num; ++$i ) {
                 $item = array();
-                $item['uri'] = $this->uri.substr($element->find('a', $i)->href, 20);
+                $item['uri'] = self::URI.substr($element->find('a', $i)->href, 20);
                 $item['title'] = substr($element->find('b', $i)->plaintext, 22);
-                $item['content'] = preg_replace('#http://cryptome.org/#', $this->uri, $element->find('b', $i)->innertext);
+                $item['content'] = preg_replace('#http://cryptome.org/#', self::URI, $element->find('b', $i)->innertext);
                 $this->items[] = $item;
             }
             break;
diff --git a/bridges/DailymotionBridge.php b/bridges/DailymotionBridge.php
index 7849ba6..8e639fe 100644
--- a/bridges/DailymotionBridge.php
+++ b/bridges/DailymotionBridge.php
@@ -1,12 +1,12 @@
 <?php
 class DailymotionBridge extends BridgeAbstract{
 
-        public $maintainer = "mitsukarenai";
-        public $name = "Dailymotion Bridge";
-        public $uri = "https://www.dailymotion.com/";
-        public $description = "Returns the 5 newest videos by username/playlist or search";
+        const MAINTAINER = "mitsukarenai";
+        const NAME = "Dailymotion Bridge";
+        const URI = "https://www.dailymotion.com/";
+        const DESCRIPTION = "Returns the 5 newest videos by username/playlist or search";
 
-        public $parameters = array (
+        const PARAMETERS = array (
             'By username' => array(
                 'u'=>array(
                     'name'=>'username',
@@ -35,7 +35,7 @@ class DailymotionBridge extends BridgeAbstract{
 
     function getMetadata($id) {
         $metadata=array();
-        $html2 = $this->getSimpleHTMLDOM($this->uri.'video/'.$id);
+        $html2 = $this->getSimpleHTMLDOM(self::URI.'video/'.$id);
         if(!$html2){
             return $metadata;
         }
@@ -90,7 +90,7 @@ class DailymotionBridge extends BridgeAbstract{
     }
 
     public function getURI(){
-        $uri=$this->uri;
+        $uri=self::URI;
         switch($this->queriedContext){
         case 'By username':
             $uri.='user/'
diff --git a/bridges/DanbooruBridge.php b/bridges/DanbooruBridge.php
index 9f6f63a..3ee8cb6 100644
--- a/bridges/DanbooruBridge.php
+++ b/bridges/DanbooruBridge.php
@@ -1,12 +1,12 @@
 <?php
 class DanbooruBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Danbooru";
-	public $uri = "http://donmai.us/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Danbooru";
+	const URI = "http://donmai.us/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -18,14 +18,14 @@ class DanbooruBridge extends BridgeAbstract{
         $page = $this->getInput('p')?$this->getInput('p'):1;
         $tags = urlencode($this->getInput('t'));
 
-        $html = $this->getSimpleHTMLDOM($this->uri."posts?&page=$page&tags=$tags")
+        $html = $this->getSimpleHTMLDOM(self::URI."posts?&page=$page&tags=$tags")
             or $this->returnServerError('Could not request Danbooru.');
 	foreach($html->find('div[id=posts] article') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('data-id'));
 		$item['timestamp'] = time();
-		$thumbnailUri = $this->uri.$element->find('img', 0)->src;
+		$thumbnailUri = self::URI.$element->find('img', 0)->src;
 		$item['tags'] = $element->find('img', 0)->getAttribute('alt');
 		$item['title'] = 'Danbooru | '.$item['postid'];
 		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
diff --git a/bridges/DansTonChatBridge.php b/bridges/DansTonChatBridge.php
index f94f1ce..30849b4 100644
--- a/bridges/DansTonChatBridge.php
+++ b/bridges/DansTonChatBridge.php
@@ -1,14 +1,14 @@
 <?php
 class DansTonChatBridge extends BridgeAbstract{
 
-	public $maintainer = "Astalaseven";
-	public $name = "DansTonChat Bridge";
-	public $uri = "http://danstonchat.com/";
-	public $description = "Returns latest quotes from DansTonChat.";
+	const MAINTAINER = "Astalaseven";
+	const NAME = "DansTonChat Bridge";
+	const URI = "http://danstonchat.com/";
+	const DESCRIPTION = "Returns latest quotes from DansTonChat.";
 
     public function collectData(){
 
-        $html = $this->getSimpleHTMLDOM($this->uri.'latest.html')
+        $html = $this->getSimpleHTMLDOM(self::URI.'latest.html')
             or $this->returnServerError('Could not request DansTonChat.');
 
         foreach($html->find('div.item') as $element) {
diff --git a/bridges/DauphineLibereBridge.php b/bridges/DauphineLibereBridge.php
index 1084969..143a6c0 100644
--- a/bridges/DauphineLibereBridge.php
+++ b/bridges/DauphineLibereBridge.php
@@ -1,12 +1,12 @@
 <?php
 class DauphineLibereBridge extends BridgeAbstract {
 
-	public $maintainer = "qwertygc";
-	public $name = "Dauphine Bridge";
-	public $uri = "http://www.ledauphine.com/";
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "qwertygc";
+	const NAME = "Dauphine Bridge";
+	const URI = "http://www.ledauphine.com/";
+	const DESCRIPTION = "Returns the newest articles.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'Catégorie de l\'article',
             'type'=>'list',
@@ -42,10 +42,10 @@ class DauphineLibereBridge extends BridgeAbstract {
 		$context = stream_context_create($opts);
 
 		if (empty($this->getInput('u'))) {
-            $html = $this->getSimpleHTMLDOM($this->uri.$this->getInput('u').'/rss')
+            $html = $this->getSimpleHTMLDOM(self::URI.$this->getInput('u').'/rss')
                 or $this->returnServerError('Could not request DauphineLibere.');
 		} else {
-            $html = $this->getSimpleHTMLDOM($this->uri.'rss')
+            $html = $this->getSimpleHTMLDOM(self::URI.'rss')
                 or $this->returnServerError('Could not request DauphineLibere.');
 		}
 		$limit = 0;
diff --git a/bridges/DemoBridge.php b/bridges/DemoBridge.php
index 2fff948..a01d15f 100644
--- a/bridges/DemoBridge.php
+++ b/bridges/DemoBridge.php
@@ -1,12 +1,12 @@
 <?php
 class DemoBridge extends BridgeAbstract{
 
-    public $maintainer = "teromene";
-    public $name = "DemoBridge";
-    public $uri = "http://github.com/rss-bridge/rss-bridge";
-    public $description = "Bridge used for demos";
+    const MAINTAINER = "teromene";
+    const NAME = "DemoBridge";
+    const URI = "http://github.com/rss-bridge/rss-bridge";
+    const DESCRIPTION = "Bridge used for demos";
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'testCheckbox' => array(
             'testCheckbox'=>array(
                 'type'=>'checkbox',
diff --git a/bridges/DeveloppezDotComBridge.php b/bridges/DeveloppezDotComBridge.php
index a7958e6..48e2974 100644
--- a/bridges/DeveloppezDotComBridge.php
+++ b/bridges/DeveloppezDotComBridge.php
@@ -1,10 +1,10 @@
 <?php
 class DeveloppezDotComBridge extends BridgeAbstract{
 
-	public $maintainer = "polopollo";
-	public $name = "Developpez.com Actus (FR)";
-	public $uri = "http://www.developpez.com/";
-	public $description = "Returns the 15 newest posts from DeveloppezDotCom (full text).";
+	const MAINTAINER = "polopollo";
+	const NAME = "Developpez.com Actus (FR)";
+	const URI = "http://www.developpez.com/";
+	const DESCRIPTION = "Returns the 15 newest posts from DeveloppezDotCom (full text).";
 
 	private function DeveloppezDotComStripCDATA($string) {
 		$string = str_replace('<![CDATA[', '', $string);
@@ -39,8 +39,8 @@ class DeveloppezDotComBridge extends BridgeAbstract{
 	}
 
 	public function collectData(){
-        $rssFeed = $this->getSimpleHTMLDOM($this->uri.'index/rss')
-            or $this->returnServerError('Could not request '.$this->uri.'index/rss');
+        $rssFeed = $this->getSimpleHTMLDOM(self::URI.'index/rss')
+            or $this->returnServerError('Could not request '.self::URI.'index/rss');
 		$limit = 0;
 
 		foreach($rssFeed->find('item') as $element) {
diff --git a/bridges/DilbertBridge.php b/bridges/DilbertBridge.php
index 05d94fc..ba5a042 100644
--- a/bridges/DilbertBridge.php
+++ b/bridges/DilbertBridge.php
@@ -1,10 +1,10 @@
 <?php
 class DilbertBridge extends BridgeAbstract {
 
-    public $maintainer = 'kranack';
-    public $name = 'Dilbert Daily Strip';
-    public $uri = 'http://dilbert.com';
-    public $description = 'The Unofficial Dilbert Daily Comic Strip';
+    const MAINTAINER = 'kranack';
+    const NAME = 'Dilbert Daily Strip';
+    const URI = 'http://dilbert.com';
+    const DESCRIPTION = 'The Unofficial Dilbert Daily Comic Strip';
 
     public function collectData(){
 
diff --git a/bridges/DollbooruBridge.php b/bridges/DollbooruBridge.php
index 73f2c19..4af5fb3 100644
--- a/bridges/DollbooruBridge.php
+++ b/bridges/DollbooruBridge.php
@@ -1,13 +1,13 @@
 <?php
 class DollbooruBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Dollbooru";
-	public $uri = "http://dollbooru.org/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Dollbooru";
+	const URI = "http://dollbooru.org/";
+	const DESCRIPTION = "Returns images from given page";
 
 
-    public $parameters  = array( array(
+    const PARAMETERS  = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -18,16 +18,16 @@ class DollbooruBridge extends BridgeAbstract{
     public function collectData(){
         $page=$this->getInput('p');
         $tags = urlencode($this->getInput('t'));
-        $html = $this->getSimpleHTMLDOM($this->uri."post/list/$tags/$page")
+        $html = $this->getSimpleHTMLDOM(self::URI."post/list/$tags/$page")
             or $this->returnServerError('Could not request Dollbooru.');
 
 
 	foreach($html->find('div[class=shm-image-list] a') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->href;
+		$item['uri'] = self::URI.$element->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('data-post-id'));
 		$item['timestamp'] = time();
-		$thumbnailUri = $this->uri.$element->find('img', 0)->src;
+		$thumbnailUri = self::URI.$element->find('img', 0)->src;
 		$item['tags'] = $element->getAttribute('data-tags');
 		$item['title'] = 'Dollbooru | '.$item['postid'];
 		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
diff --git a/bridges/DuckDuckGoBridge.php b/bridges/DuckDuckGoBridge.php
index 29719a9..25ec859 100644
--- a/bridges/DuckDuckGoBridge.php
+++ b/bridges/DuckDuckGoBridge.php
@@ -1,19 +1,19 @@
 <?php
 class DuckDuckGoBridge extends BridgeAbstract{
 
-	public $maintainer = "Astalaseven";
-	public $name = "DuckDuckGo";
-	public $uri = "https://duckduckgo.com/";
-	public $description = "Returns most recent results from DuckDuckGo.";
+	const MAINTAINER = "Astalaseven";
+	const NAME = "DuckDuckGo";
+	const URI = "https://duckduckgo.com/";
+	const DESCRIPTION = "Returns most recent results from DuckDuckGo.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'keyword',
             'required'=>true)
         ));
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri.'html/?q='.$this->getInput('u').'+sort:date')
+        $html = $this->getSimpleHTMLDOM(self::URI.'html/?q='.$this->getInput('u').'+sort:date')
             or $this->returnServerError('Could not request DuckDuckGo.');
 
         foreach($html->find('div.results_links') as $element) {
diff --git a/bridges/EZTVBridge.php b/bridges/EZTVBridge.php
index a6ab15e..d2399e0 100644
--- a/bridges/EZTVBridge.php
+++ b/bridges/EZTVBridge.php
@@ -1,12 +1,12 @@
 <?php
 class EZTVBridge extends BridgeAbstract{
 
-	public $maintainer = "alexAubin";
-	public $name = "EZTV";
-	public $uri = "https://eztv.ch/";
-	public $description = "Returns list of *recent* torrents for a specific show on EZTV. Get showID from URLs in https://eztv.ch/shows/showID/show-full-name.";
+	const MAINTAINER = "alexAubin";
+	const NAME = "EZTV";
+	const URI = "https://eztv.ch/";
+	const DESCRIPTION = "Returns list of *recent* torrents for a specific show on EZTV. Get showID from URLs in https://eztv.ch/shows/showID/show-full-name.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'i'=>array(
             'name'=>'Show ids',
             'exampleValue'=>'showID1,showID2,…',
@@ -34,7 +34,7 @@ class EZTVBridge extends BridgeAbstract{
         foreach($showList as $showID){
 
             // Get show page
-            $html = $this->getSimpleHTMLDOM($this->uri.'shows/'.rawurlencode($showID).'/')
+            $html = $this->getSimpleHTMLDOM(self::URI.'shows/'.rawurlencode($showID).'/')
                 or $this->returnServerError('Could not request EZTV for id "'.$showID.'"');
 
             // Loop on each element that look like an episode entry...
@@ -53,7 +53,7 @@ class EZTVBridge extends BridgeAbstract{
 
                 // Fill item
                 $item = array();
-                $item['uri'] = $this->uri.$epinfo->href;
+                $item['uri'] = self::URI.$epinfo->href;
                 $item['id'] = $item['uri'];
                 $item['timestamp'] = makeTimestamp($released->plaintext);
                 $item['title'] = $epinfo->plaintext;
diff --git a/bridges/EliteDangerousGalnetBridge.php b/bridges/EliteDangerousGalnetBridge.php
index a15718a..09d3770 100644
--- a/bridges/EliteDangerousGalnetBridge.php
+++ b/bridges/EliteDangerousGalnetBridge.php
@@ -1,20 +1,20 @@
 <?php
 class EliteDangerousGalnetBridge extends BridgeAbstract
 {
-	public $maintainer = "corenting";
-	public $name = "Elite: Dangerous Galnet";
-	public $uri = "https://community.elitedangerous.com/galnet/";
-	public $description = "Returns the latest page of news from Galnet";
+	const MAINTAINER = "corenting";
+	const NAME = "Elite: Dangerous Galnet";
+	const URI = "https://community.elitedangerous.com/galnet/";
+	const DESCRIPTION = "Returns the latest page of news from Galnet";
 
 	public function collectData()
 	{
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Error while downloading the website content');
 		foreach($html->find('div.article') as $element) {
 			$item = array();
 
 			$uri = $element->find('h3 a', 0)->href;
-			$uri = $this->uri . substr($uri,strlen('/galnet/'));
+			$uri = self::URI . substr($uri,strlen('/galnet/'));
 			$item['uri'] = $uri;
 
 			$title = $element->find('h3 a', 0)->plaintext;
diff --git a/bridges/ElsevierBridge.php b/bridges/ElsevierBridge.php
index 0444f63..8905a9e 100644
--- a/bridges/ElsevierBridge.php
+++ b/bridges/ElsevierBridge.php
@@ -1,11 +1,11 @@
 <?php
 class ElsevierBridge extends BridgeAbstract{
-	public $maintainer = 'Pierre Mazière';
-	public $name = 'Elsevier journals recent articles';
-	public $uri = 'http://www.journals.elsevier.com/';
-	public $description = 'Returns the recent articles published in Elsevier journals';
+	const MAINTAINER = 'Pierre Mazière';
+	const NAME = 'Elsevier journals recent articles';
+	const URI = 'http://www.journals.elsevier.com/';
+	const DESCRIPTION = 'Returns the recent articles published in Elsevier journals';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'j'=>array(
             'name'=>'Journal name',
             'required'=>true,
@@ -56,7 +56,7 @@ class ElsevierBridge extends BridgeAbstract{
 	}
 
 	public function collectData(){
-		$uri = $this->uri . $this->getInput('j') . '/recent-articles/';
+		$uri = self::URI . $this->getInput('j') . '/recent-articles/';
 		$html = $this->getSimpleHTMLDOM($uri) or $this->returnServerError('No results for Elsevier journal '.$this->getInput('j'));
 
 		foreach($html->find('.pod-listing') as $article){
diff --git a/bridges/EstCeQuonMetEnProdBridge.php b/bridges/EstCeQuonMetEnProdBridge.php
index 531d68b..b4f94b8 100644
--- a/bridges/EstCeQuonMetEnProdBridge.php
+++ b/bridges/EstCeQuonMetEnProdBridge.php
@@ -1,10 +1,10 @@
 <?php
 class EstCeQuonMetEnProdBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'Est-ce qu\'on met en prod aujourd\'hui ?';
-    public $uri = 'https://www.estcequonmetenprodaujourdhui.info/';
-    public $description = 'Should we put a website in production today? (French)';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'Est-ce qu\'on met en prod aujourd\'hui ?';
+    const URI = 'https://www.estcequonmetenprodaujourdhui.info/';
+    const DESCRIPTION = 'Should we put a website in production today? (French)';
 
     public function collectData(){
         function ExtractFromDelimiters($string, $start, $end) {
diff --git a/bridges/FacebookBridge.php b/bridges/FacebookBridge.php
index 2c17990..90b7360 100644
--- a/bridges/FacebookBridge.php
+++ b/bridges/FacebookBridge.php
@@ -1,12 +1,12 @@
 <?php
 class FacebookBridge extends BridgeAbstract{
 
-	public $maintainer = "teromene";
-	public $name = "Facebook";
-	public $uri = "https://www.facebook.com/";
-	public $description = "Input a page title or a profile log. For a profile log, please insert the parameter as follow : myExamplePage/132621766841117";
+	const MAINTAINER = "teromene";
+	const NAME = "Facebook";
+	const URI = "https://www.facebook.com/";
+	const DESCRIPTION = "Input a page title or a profile log. For a profile log, please insert the parameter as follow : myExamplePage/132621766841117";
 
-    public $parameters =array( array(
+    const PARAMETERS =array( array(
         'u'=>array(
             'name'=>'Username',
             'required'=>true
@@ -31,7 +31,7 @@ class FacebookBridge extends BridgeAbstract{
 			if (is_array($matches) && count($matches) > 1) {
 				$link = $matches[1];
 				if (strpos($link, '/') === 0)
-					$link = $this->uri.$link.'"';
+					$link = self::URI.$link.'"';
 				if (strpos($link, 'facebook.com/l.php?u=') !== false)
 					$link = urldecode(ExtractFromDelimiters($link, 'facebook.com/l.php?u=', '&'));
 				return ' href="'.$link.'"';
@@ -104,10 +104,10 @@ class FacebookBridge extends BridgeAbstract{
 		//Retrieve page contents
 		if (is_null($html)) {
 			if (!strpos($this->getInput('u'), "/")) {
-                $html = $this->getSimpleHTMLDOM($this->uri.urlencode($this->getInput('u')).'?_fb_noscript=1')
+                $html = $this->getSimpleHTMLDOM(self::URI.urlencode($this->getInput('u')).'?_fb_noscript=1')
                     or $this->returnServerError('No results for this query.');
 			} else {
-                $html = $this->getSimpleHTMLDOM($this->uri.'pages/'.$this->getInput('u').'?_fb_noscript=1')
+                $html = $this->getSimpleHTMLDOM(self::URI.'pages/'.$this->getInput('u').'?_fb_noscript=1')
                     or $this->returnServerError('No results for this query.');
 			}
 		}
@@ -123,7 +123,7 @@ class FacebookBridge extends BridgeAbstract{
 			foreach ($captcha->find('input, button') as $input)
 				$captcha_fields[$input->name] = $input->value;
 			$_SESSION['captcha_fields'] = $captcha_fields;
-			$_SESSION['captcha_action'] = $this->uri.$captcha->find('form', 0)->action;
+			$_SESSION['captcha_action'] = self::URI.$captcha->find('form', 0)->action;
 
 			//Show captcha filling form to the viewer, proxying the captcha image
 			$img = base64_encode($this->getContents($captcha->find('img', 0)->src));
@@ -192,7 +192,7 @@ class FacebookBridge extends BridgeAbstract{
 						$title = substr($title, 0, strpos(wordwrap($title, 64), "\n")).'...';
 
 					//Build and add final item
-					$item['uri'] = $this->uri.$post->find('abbr')[0]->parent()->getAttribute('href');
+					$item['uri'] = self::URI.$post->find('abbr')[0]->parent()->getAttribute('href');
 					$item['content'] = $content;
 					$item['title'] = $title;
 					$item['author'] = $author;
diff --git a/bridges/FierPandaBridge.php b/bridges/FierPandaBridge.php
index 4cdfa8d..5c574fc 100644
--- a/bridges/FierPandaBridge.php
+++ b/bridges/FierPandaBridge.php
@@ -1,13 +1,13 @@
 <?php
 class FierPandaBridge extends BridgeAbstract {
 
-    public $maintainer = "snroki";
-    public $name = "Fier Panda Bridge";
-    public $uri = "http://www.fier-panda.fr/";
-    public $description = "Returns latest articles from Fier Panda.";
+    const MAINTAINER = "snroki";
+    const NAME = "Fier Panda Bridge";
+    const URI = "http://www.fier-panda.fr/";
+    const DESCRIPTION = "Returns latest articles from Fier Panda.";
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri) or $this->returnServerError('Could not request Fier Panda.');
+        $html = $this->getSimpleHTMLDOM(self::URI) or $this->returnServerError('Could not request Fier Panda.');
 
         foreach($html->find('div.container-content article') as $element) {
             $item = array();
diff --git a/bridges/FlickrExploreBridge.php b/bridges/FlickrExploreBridge.php
index 58343f7..f35333f 100644
--- a/bridges/FlickrExploreBridge.php
+++ b/bridges/FlickrExploreBridge.php
@@ -1,13 +1,13 @@
 <?php
 class FlickrExploreBridge extends BridgeAbstract{
 
-	public $maintainer = "sebsauvage";
-	public $name = "Flickr Explore";
-	public $uri = "https://www.flickr.com/";
-	public $description = "Returns the latest interesting images from Flickr";
+	const MAINTAINER = "sebsauvage";
+	const NAME = "Flickr Explore";
+	const URI = "https://www.flickr.com/";
+	const DESCRIPTION = "Returns the latest interesting images from Flickr";
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri.'explore')
+        $html = $this->getSimpleHTMLDOM(self::URI.'explore')
             or $this->returnServerError('Could not request Flickr.');
 
         foreach($html->find('.photo-list-photo-view') as $element) {
@@ -32,7 +32,7 @@ class FlickrExploreBridge extends BridgeAbstract{
                         )) or $this->returnServerError('Could not request Flickr.'); // FIXME: Request time too long...
 
             $item = array();
-            $item['uri'] = $this->uri.'photo.gne?id='.$imageID;
+            $item['uri'] = self::URI.'photo.gne?id='.$imageID;
             $item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $imageURI . '" /></a>'; // FIXME: Filter javascript ?
             $item['title'] = $imageJSON->photo->title->_content;
             $this->items[] = $item;
diff --git a/bridges/FlickrTagBridge.php b/bridges/FlickrTagBridge.php
index 2494567..8b3f1b2 100644
--- a/bridges/FlickrTagBridge.php
+++ b/bridges/FlickrTagBridge.php
@@ -1,12 +1,12 @@
 <?php
 class FlickrTagBridge extends BridgeAbstract{
 
-	public $maintainer = "erwang";
-	public $name = "Flickr TagUser";
-	public $uri = "http://www.flickr.com/";
-	public $description = "Returns the tagged or user images from Flickr";
+	const MAINTAINER = "erwang";
+	const NAME = "Flickr TagUser";
+	const URI = "http://www.flickr.com/";
+	const DESCRIPTION = "Returns the tagged or user images from Flickr";
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'By keyword' => array(
             'q'=>array(
                 'name'=>'keyword',
@@ -25,18 +25,18 @@ class FlickrTagBridge extends BridgeAbstract{
     public function collectData(){
         switch($this->queriedContext){
         case 'By keyword':
-            $html = $this->getSimpleHTMLDOM($this->uri.'search/?q='.urlencode($this->getInput('q')).'&s=rec')
+            $html = $this->getSimpleHTMLDOM(self::URI.'search/?q='.urlencode($this->getInput('q')).'&s=rec')
                 or $this->returnServerError('No results for this query.');
             break;
         case 'by username':
-            $html = $this->getSimpleHTMLDOM($this->uri.'photos/'.urlencode($this->getInput('u')).'/')
+            $html = $this->getSimpleHTMLDOM(self::URI.'photos/'.urlencode($this->getInput('u')).'/')
                 or $this->returnServerError('Requested username can\'t be found.');
             break;
         }
 
         foreach($html->find('span.photo_container') as $element) {
             $item = array();
-            $item['uri'] = $this->uri.$element->find('a',0)->href;
+            $item['uri'] = self::URI.$element->find('a',0)->href;
             $thumbnailUri = $element->find('img',0)->getAttribute('data-defer-src');
             $item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a>'; // FIXME: Filter javascript ?
             $item['title'] = $element->find('a',0)->title;
diff --git a/bridges/FootitoBridge.php b/bridges/FootitoBridge.php
index b2c4089..b669ac5 100644
--- a/bridges/FootitoBridge.php
+++ b/bridges/FootitoBridge.php
@@ -1,13 +1,13 @@
 <?php
 class FootitoBridge extends BridgeAbstract{
 
-	public $maintainer = "superbaillot.net";
-	public $name = "Footito";
-	public $uri = "http://www.footito.fr/";
-	public $description = "Footito";
+	const MAINTAINER = "superbaillot.net";
+	const NAME = "Footito";
+	const URI = "http://www.footito.fr/";
+	const DESCRIPTION = "Footito";
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Could not request Footito.');
 
         foreach($html->find('div.post') as $element) {
diff --git a/bridges/FourchanBridge.php b/bridges/FourchanBridge.php
index eddfdde..315bbdb 100644
--- a/bridges/FourchanBridge.php
+++ b/bridges/FourchanBridge.php
@@ -1,12 +1,12 @@
 <?php
 class FourchanBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "4chan";
-	public $uri = "https://www.4chan.org/";
-	public $description = "Returns posts from the specified thread";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "4chan";
+	const URI = "https://www.4chan.org/";
+	const DESCRIPTION = "Returns posts from the specified thread";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         't'=>array(
             'name'=>'Thread URL',
             'pattern'=>'(https:\/\/)?boards\.4chan\.org\/.*thread\/.*',
diff --git a/bridges/FreenewsBridge.php b/bridges/FreenewsBridge.php
index 6f98069..60fd34e 100644
--- a/bridges/FreenewsBridge.php
+++ b/bridges/FreenewsBridge.php
@@ -2,10 +2,10 @@
 define("FREENEWS_RSS", 'http://feeds.feedburner.com/Freenews-Freebox?format=xml');
 class FreenewsBridge extends RssExpander {
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Freenews";
-	public $uri = "http://freenews.fr";
-	public $description = "Un site d'actualité pour les freenautes (mais ne parlant pas que de la freebox). Ne rentrez pas d'id si vous voulez accéder aux actualités générales.";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Freenews";
+	const URI = "http://freenews.fr";
+	const DESCRIPTION = "Un site d'actualité pour les freenautes (mais ne parlant pas que de la freebox). Ne rentrez pas d'id si vous voulez accéder aux actualités générales.";
 
     public function collectData(){
         parent::collectExpandableDatas(FREENEWS_RSS);
diff --git a/bridges/FuturaSciencesBridge.php b/bridges/FuturaSciencesBridge.php
index 3a91467..e4c8471 100644
--- a/bridges/FuturaSciencesBridge.php
+++ b/bridges/FuturaSciencesBridge.php
@@ -1,12 +1,12 @@
 <?php
 class FuturaSciencesBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'Futura-Sciences Bridge';
-    public $uri = 'http://www.futura-sciences.com/';
-    public $description = 'Returns the newest articles.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'Futura-Sciences Bridge';
+    const URI = 'http://www.futura-sciences.com/';
+    const DESCRIPTION = 'Returns the newest articles.';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'feed'=> array(
             'name'=>'Feed',
             'type'=>'list',
diff --git a/bridges/GBAtempBridge.php b/bridges/GBAtempBridge.php
index bab42be..0950dc3 100644
--- a/bridges/GBAtempBridge.php
+++ b/bridges/GBAtempBridge.php
@@ -1,12 +1,12 @@
 <?php
 class GBAtempBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'GBAtemp';
-    public $uri = 'http://gbatemp.net/';
-    public $description = 'GBAtemp is a user friendly underground video game community.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'GBAtemp';
+    const URI = 'http://gbatemp.net/';
+    const DESCRIPTION = 'GBAtemp is a user friendly underground video game community.';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'type'=>array(
             'name'=>'Type',
             'type'=>'list',
@@ -65,22 +65,22 @@ class GBAtempBridge extends BridgeAbstract {
 
     public function collectData(){
 
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Could not request GBAtemp.');
 
         switch($this->getInput('type')){
         case 'N':
             foreach ($html->find('li[class=news_item full]') as $newsItem) {
-                $url = $this->uri.$newsItem->find('a', 0)->href;
+                $url = self::URI.$newsItem->find('a', 0)->href;
                 $time = intval($this->ExtractFromDelimiters($newsItem->find('abbr.DateTime', 0)->outertext, 'data-time="', '"'));
                 $author = $newsItem->find('a.username', 0)->plaintext;
                 $title = $newsItem->find('a', 1)->plaintext;
-                $content = $this->fetch_post_content($url, $this->uri);
+                $content = $this->fetch_post_content($url, self::URI);
                 $this->items[] = $this->build_item($url, $title, $author, $time, $content);
             }
         case 'R':
             foreach ($html->find('li.portal_review') as $reviewItem) {
-                $url = $this->uri.$reviewItem->find('a', 0)->href;
+                $url = self::URI.$reviewItem->find('a', 0)->href;
                 $title = $reviewItem->find('span.review_title', 0)->plaintext;
                 $content = $this->getSimpleHTMLDOM($url) or $this->returnServerError('Could not request GBAtemp: '.$uri);
                 $author = $content->find('a.username', 0)->plaintext;
@@ -90,25 +90,25 @@ class GBAtempBridge extends BridgeAbstract {
                 $subheader = '<p><b>'.$content->find('div.review_subheader', 0)->plaintext.'</b></p>';
                 $procons = $content->find('table.review_procons', 0)->outertext;
                 $scores = $content->find('table.reviewscores', 0)->outertext;
-                $content = $this->cleanup_post_content($intro.$review.$subheader.$procons.$scores, $this->uri);
+                $content = $this->cleanup_post_content($intro.$review.$subheader.$procons.$scores, self::URI);
                 $this->items[] = $this->build_item($url, $title, $author, $time, $content);
             }
         case 'T':
             foreach ($html->find('li.portal-tutorial') as $tutorialItem) {
-                $url = $this->uri.$tutorialItem->find('a', 0)->href;
+                $url = self::URI.$tutorialItem->find('a', 0)->href;
                 $title = $tutorialItem->find('a', 0)->plaintext;
                 $time = intval($this->ExtractFromDelimiters($tutorialItem->find('abbr.DateTime', 0)->outertext, 'data-time="', '"'));
                 $author = $tutorialItem->find('a.username', 0)->plaintext;
-                $content = $this->fetch_post_content($url, $this->uri);
+                $content = $this->fetch_post_content($url, self::URI);
                 $this->items[] = $this->build_item($url, $title, $author, $time, $content);
             }
         case 'F':
             foreach ($html->find('li.rc_item') as $postItem) {
-                $url = $this->uri.$postItem->find('a', 1)->href;
+                $url = self::URI.$postItem->find('a', 1)->href;
                 $title = $postItem->find('a', 1)->plaintext;
                 $time = intval($this->ExtractFromDelimiters($postItem->find('abbr.DateTime', 0)->outertext, 'data-time="', '"'));
                 $author = $postItem->find('a.username', 0)->plaintext;
-                $content = $this->fetch_post_content($url, $this->uri);
+                $content = $this->fetch_post_content($url, self::URI);
                 $this->items[] = $this->build_item($url, $title, $author, $time, $content);
             }
         }
@@ -117,7 +117,7 @@ class GBAtempBridge extends BridgeAbstract {
     public function getName() {
         $type=array_search(
             $this->getInput('type'),
-            $this->parameters[$this->queriedContext]['type']['values']
+            self::PARAMETERS[$this->queriedContext]['type']['values']
         );
         return 'GBAtemp '.$type.' Bridge';
     }
diff --git a/bridges/GelbooruBridge.php b/bridges/GelbooruBridge.php
index 811a905..f612c98 100644
--- a/bridges/GelbooruBridge.php
+++ b/bridges/GelbooruBridge.php
@@ -1,12 +1,12 @@
 <?php
 class GelbooruBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Gelbooru";
-	public $uri = "http://gelbooru.com/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Gelbooru";
+	const URI = "http://gelbooru.com/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -16,14 +16,14 @@ class GelbooruBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'index.php?page=post&s=list&'
+            self::URI.'index.php?page=post&s=list&'
             .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*63:'')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Gelbooru.');
 
 	foreach($html->find('div[class=content] span') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
 		$item['timestamp'] = time();
 		$thumbnailUri = $element->find('img', 0)->src;
diff --git a/bridges/GiphyBridge.php b/bridges/GiphyBridge.php
index 95beea5..dcdff8b 100644
--- a/bridges/GiphyBridge.php
+++ b/bridges/GiphyBridge.php
@@ -3,12 +3,12 @@ define('GIPHY_LIMIT', 10);
 
 class GiphyBridge extends BridgeAbstract{
 
-	public $maintainer = "kraoc";
-	public $name = "Giphy Bridge";
-	public $uri = "http://giphy.com/";
-	public $description = "Bridge for giphy.com";
+	const MAINTAINER = "kraoc";
+	const NAME = "Giphy Bridge";
+	const URI = "http://giphy.com/";
+	const DESCRIPTION = "Bridge for giphy.com";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         's'=>array(
             'name'=>'search tag',
             'required'=>true
@@ -22,7 +22,7 @@ class GiphyBridge extends BridgeAbstract{
 	public function collectData(){
 		$html = '';
         $base_url = 'http://giphy.com';
-        $html = $this->getSimpleHTMLDOM($this->uri.'/search/'.urlencode($this->getInput('s').'/'))
+        $html = $this->getSimpleHTMLDOM(self::URI.'/search/'.urlencode($this->getInput('s').'/'))
             or $this->returnServerError('No results for this query.');
 
         $max = GIPHY_LIMIT;
@@ -37,7 +37,7 @@ class GiphyBridge extends BridgeAbstract{
                 $node = $entry->first_child();
                 $href = $node->getAttribute('href');
 
-                $html2 = $this->getSimpleHTMLDOM($this->uri . $href)
+                $html2 = $this->getSimpleHTMLDOM(self::URI . $href)
                     or $this->returnServerError('No results for this query.');
                 $figure = $html2->getElementByTagName('figure');
                 $img = $figure->firstChild();
diff --git a/bridges/GithubIssueBridge.php b/bridges/GithubIssueBridge.php
index 480a244..767d584 100644
--- a/bridges/GithubIssueBridge.php
+++ b/bridges/GithubIssueBridge.php
@@ -1,12 +1,12 @@
 <?php
 class GithubIssueBridge extends BridgeAbstract{
 
-  public $maintainer = 'Pierre Mazière';
-  public $name = 'Github Issue';
-  public $uri = 'https://github.com/';
-  public $description = 'Returns the issues or comments of an issue of a github project';
+  const MAINTAINER = 'Pierre Mazière';
+  const NAME = 'Github Issue';
+  const URI = 'https://github.com/';
+  const DESCRIPTION = 'Returns the issues or comments of an issue of a github project';
 
-  public $parameters=array(
+  const PARAMETERS=array(
     'global'=>array (
       'u'=>array(
         'name'=>'User name',
@@ -29,7 +29,7 @@ class GithubIssueBridge extends BridgeAbstract{
   );
 
   public function collectData(){
-    $uri = $this->uri.$this->getInput('u').'/'.$this->getInput('p')
+    $uri = self::URI.$this->getInput('u').'/'.$this->getInput('p')
       .'/issues/'.$this->getInput('i');
     $html = $this->getSimpleHTMLDOM($uri)
       or $this->returnServerError('No results for Github Issue '.$this->getInput('i').' in project '.$this->getInput('u').'/'.$this->getInput('p'));
@@ -60,7 +60,7 @@ class GithubIssueBridge extends BridgeAbstract{
         $item['title']=$issue->find('.js-navigation-open',0)->plaintext;
         $comments=$issue->find('.col-5',0)->plaintext;
         $item['content']='Comments: '.($comments?$comments:'0');
-        $item['uri']=$this->uri.$issue->find('.js-navigation-open',0)->getAttribute('href');
+        $item['uri']=self::URI.$issue->find('.js-navigation-open',0)->getAttribute('href');
         $this->items[]=$item;
       }
       break;
diff --git a/bridges/GitlabCommitsBridge.php b/bridges/GitlabCommitsBridge.php
index f5fe97e..8c7ec71 100644
--- a/bridges/GitlabCommitsBridge.php
+++ b/bridges/GitlabCommitsBridge.php
@@ -1,12 +1,12 @@
 <?php
 class GitlabCommitsBridge extends BridgeAbstract{
 
-    public $maintainer = 'Pierre Mazière';
-    public $name = 'Gitlab Commits';
-    public $uri = '';
-    public $description = 'Returns the commits of a project hosted on a gitlab instance';
+    const MAINTAINER = 'Pierre Mazière';
+    const NAME = 'Gitlab Commits';
+    const URI = '';
+    const DESCRIPTION = 'Returns the commits of a project hosted on a gitlab instance';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
       'uri'=>array(
         'name'=>'Base URI',
         'defaultValue'=>'https://gitlab.com'
diff --git a/bridges/GizmodoFRBridge.php b/bridges/GizmodoFRBridge.php
index 660da8a..e653130 100644
--- a/bridges/GizmodoFRBridge.php
+++ b/bridges/GizmodoFRBridge.php
@@ -1,10 +1,10 @@
 <?php
 class GizmodoFRBridge extends BridgeAbstract{
 
-	public $maintainer = "polopollo";
-	public $name = "GizmodoFR";
-	public $uri = "http://www.gizmodo.fr/";
-	public $description = "Returns the 15 newest posts from GizmodoFR (full text).";
+	const MAINTAINER = "polopollo";
+	const NAME = "GizmodoFR";
+	const URI = "http://www.gizmodo.fr/";
+	const DESCRIPTION = "Returns the 15 newest posts from GizmodoFR (full text).";
 
     public function collectData(){
 
@@ -24,8 +24,8 @@ class GizmodoFRBridge extends BridgeAbstract{
             return $text;
         }
 
-        $rssFeed = $this->getSimpleHTMLDOM($this->uri.'/feed')
-          or $this->returnServerError('Could not request '.$this->uri.'/feed');
+        $rssFeed = $this->getSimpleHTMLDOM(self::URI.'/feed')
+          or $this->returnServerError('Could not request '.self::URI.'/feed');
     	$limit = 0;
 
     	foreach($rssFeed->find('item') as $element) {
diff --git a/bridges/GooglePlusPostBridge.php b/bridges/GooglePlusPostBridge.php
index a55620f..b86151d 100644
--- a/bridges/GooglePlusPostBridge.php
+++ b/bridges/GooglePlusPostBridge.php
@@ -4,12 +4,12 @@ class GooglePlusPostBridge extends BridgeAbstract
 	protected $_title;
 	protected $_url;
 
-	public $maintainer = "Grummfy";
-	public $name = "Google Plus Post Bridge";
-	public $uri = "https://plus.google.com/";
-	public $description = "Returns user public post (without API).";
+	const MAINTAINER = "Grummfy";
+	const NAME = "Google Plus Post Bridge";
+	const URI = "https://plus.google.com/";
+	const DESCRIPTION = "Returns user public post (without API).";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'username'=>array(
             'name'=>'username or Id',
             'required'=>true
@@ -20,7 +20,7 @@ class GooglePlusPostBridge extends BridgeAbstract
 	{
 		// get content parsed
 //		$html = $this->getSimpleHTMLDOM(__DIR__ . '/../posts2.html'
-		$html = $this->getSimpleHTMLDOM($this->uri . urlencode($this->getInput('username')) . '/posts'
+		$html = $this->getSimpleHTMLDOM(self::URI . urlencode($this->getInput('username')) . '/posts'
 			// force language
 			, false, stream_context_create(array('http'=> array(
 			'header'    => 'Accept-Language: fr,fr-be,fr-fr;q=0.8,en;q=0.4,en-us;q=0.2;*' . "\r\n"
@@ -48,7 +48,7 @@ class GooglePlusPostBridge extends BridgeAbstract
 //			$item['title'] = $item['fullname'] = $post->find('header.lea', 0)->plaintext;
 			$item['avatar'] = $post->find('div.ys img', 0)->src;
 //			var_dump((($post->find('a.o-U-s', 0)->getAllAttributes())));
-			$item['uri'] = $this->uri . $post->find('a.o-U-s', 0)->href;
+			$item['uri'] = self::URI . $post->find('a.o-U-s', 0)->href;
 			$item['timestamp'] = strtotime($post->find('a.o-U-s', 0)->plaintext);
 			$this->items[] = $item;
 
@@ -56,21 +56,21 @@ class GooglePlusPostBridge extends BridgeAbstract
 			$hashtags = array();
 			foreach($post->find('a.d-s') as $hashtag)
 			{
-				$hashtags[ trim($hashtag->plaintext) ] = $this->uri . $hashtag->href;
+				$hashtags[ trim($hashtag->plaintext) ] = self::URI . $hashtag->href;
 			}
 
 			$item['content'] = '';
 
 			// avatar display
-			$item['content'] .= '<div style="float:left; margin: 0 0.5em 0.5em 0;"><a href="' . $this->uri . urlencode($this->getInput('username'));
+			$item['content'] .= '<div style="float:left; margin: 0 0.5em 0.5em 0;"><a href="' . self::URI . urlencode($this->getInput('username'));
 			$item['content'] .= '"><img align="top" alt="avatar" src="' . $item['avatar'].'" />' . $item['username'] . '</a></div>';
 
 			$content = $post->find('div.Al', 0);
 
 			// alter link
 //			$content = $content->innertext;
-//			$content = str_replace('href="./', 'href="' . $this->uri, $content);
-//			$content = str_replace('href="photos', 'href="' . $this->uri . 'photos', $content);
+//			$content = str_replace('href="./', 'href="' . self::URI, $content);
+//			$content = str_replace('href="photos', 'href="' . self::URI . 'photos', $content);
 			// XXX ugly but I don't have any idea how to do a better stuff, str_replace on link doesn't work as expected and ask too many checks
 			foreach($content->find('a') as $link)
 			{
@@ -86,7 +86,7 @@ class GooglePlusPostBridge extends BridgeAbstract
 					{
 						$link->href = substr($link->href, 1);
 					}
-					$link->href = $this->uri . $link->href;
+					$link->href = self::URI . $link->href;
 				}
 			}
 			$content = $content->innertext;
@@ -107,7 +107,7 @@ class GooglePlusPostBridge extends BridgeAbstract
 
 	public function getURI()
 	{
-		return $this->_url ?: $this->uri;
+		return $this->_url ?: self::URI;
 	}
 
 	public function getCacheDuration()
diff --git a/bridges/GoogleSearchBridge.php b/bridges/GoogleSearchBridge.php
index fb3d740..9c3724f 100644
--- a/bridges/GoogleSearchBridge.php
+++ b/bridges/GoogleSearchBridge.php
@@ -9,12 +9,12 @@
 */
 class GoogleSearchBridge extends BridgeAbstract{
 
-	public $maintainer = "sebsauvage";
-	public $name = "Google search";
-	public $uri = "https://www.google.com/";
-	public $description = "Returns most recent results from Google search.";
+	const MAINTAINER = "sebsauvage";
+	const NAME = "Google search";
+	const URI = "https://www.google.com/";
+	const DESCRIPTION = "Returns most recent results from Google search.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'q'=>array(
             'name'=>"keyword",
             'required'=>true
@@ -25,7 +25,7 @@ class GoogleSearchBridge extends BridgeAbstract{
     public function collectData(){
         $html = '';
 
-        $html = $this->getSimpleHTMLDOM($this->uri
+        $html = $this->getSimpleHTMLDOM(self::URI
           .'search?q=' . urlencode($this->getInput('q'))
           .'&num=100&complete=0&tbs=qdr:y,sbd:1')
           or $this->returnServerError('No results for this query.');
diff --git a/bridges/GuruMedBridge.php b/bridges/GuruMedBridge.php
index 297dc56..0c4bf2c 100644
--- a/bridges/GuruMedBridge.php
+++ b/bridges/GuruMedBridge.php
@@ -1,10 +1,10 @@
 <?php
 class GuruMedBridge extends BridgeAbstract{
 
-	public $maintainer = "qwertygc";
-	public $name = "GuruMed";
-	public $uri = "http://www.gurumed.org";
-	public $description = "Returns the 5 newest posts from Gurumed (full text)";
+	const MAINTAINER = "qwertygc";
+	const NAME = "GuruMed";
+	const URI = "http://www.gurumed.org";
+	const DESCRIPTION = "Returns the 5 newest posts from Gurumed (full text)";
 
 	private function GurumedStripCDATA($string) {
 		$string = str_replace('<![CDATA[', '', $string);
@@ -13,7 +13,7 @@ class GuruMedBridge extends BridgeAbstract{
 	}
 
 	public function collectData(){
-      $html = $this->getSimpleHTMLDOM($this->uri.'feed')
+      $html = $this->getSimpleHTMLDOM(self::URI.'feed')
         or $this->returnServerError('Could not request Gurumed.');
 		$limit = 0;
 
diff --git a/bridges/HDWallpapersBridge.php b/bridges/HDWallpapersBridge.php
index fde1aaa..bfa4979 100644
--- a/bridges/HDWallpapersBridge.php
+++ b/bridges/HDWallpapersBridge.php
@@ -1,11 +1,11 @@
 <?php
 class HDWallpapersBridge extends BridgeAbstract {
-	public $maintainer = "nel50n";
-	public $name = "HD Wallpapers Bridge";
-	public $uri = "http://www.hdwallpapers.in/";
-	public $description = "Returns the latests wallpapers from HDWallpapers";
+	const MAINTAINER = "nel50n";
+	const NAME = "HD Wallpapers Bridge";
+	const URI = "http://www.hdwallpapers.in/";
+	const DESCRIPTION = "Returns the latests wallpapers from HDWallpapers";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
       'c'=>array(
         'name'=>'category',
         'defaultValue'=>'latest_wallpapers'
@@ -29,7 +29,7 @@ class HDWallpapersBridge extends BridgeAbstract {
         $lastpage = 1;
 
         for ($page = 1; $page <= $lastpage; $page++) {
-            $link = $this->uri.'/'.$category.'/page/'.$page;
+            $link = self::URI.'/'.$category.'/page/'.$page;
             $html = $this->getSimpleHTMLDOM($link) or $this->returnServerError('No results for this query.');
 
             if ($page === 1) {
@@ -42,10 +42,10 @@ class HDWallpapersBridge extends BridgeAbstract {
 
                 $item = array();
                 // http://www.hdwallpapers.in/download/yosemite_reflections-1680x1050.jpg
-                $item['uri'] = $this->uri.'/download'.str_replace('wallpapers.html', $this->getInput('r').'.jpg', $element->href);
+                $item['uri'] = self::URI.'/download'.str_replace('wallpapers.html', $this->getInput('r').'.jpg', $element->href);
                 $item['timestamp'] = time();
                 $item['title'] = $element->find('p', 0)->text();
-                $item['content'] = $item['title'].'<br><a href="'.$item['uri'].'"><img src="'.$this->uri.$thumbnail->src.'" /></a>';
+                $item['content'] = $item['title'].'<br><a href="'.$item['uri'].'"><img src="'.self::URI.$thumbnail->src.'" /></a>';
                 $this->items[] = $item;
 
                 $num++;
diff --git a/bridges/HentaiHavenBridge.php b/bridges/HentaiHavenBridge.php
index e970d00..2732560 100644
--- a/bridges/HentaiHavenBridge.php
+++ b/bridges/HentaiHavenBridge.php
@@ -1,13 +1,13 @@
 <?php
 class HentaiHavenBridge extends BridgeAbstract{
 
-	public $maintainer = "albirew";
-	public $name = "Hentai Haven";
-	public $uri = "http://hentaihaven.org/";
-	public $description = "Returns releases from Hentai Haven";
+	const MAINTAINER = "albirew";
+	const NAME = "Hentai Haven";
+	const URI = "http://hentaihaven.org/";
+	const DESCRIPTION = "Returns releases from Hentai Haven";
 
     public function collectData(){
-      $html = $this->getSimpleHTMLDOM($this->uri)
+      $html = $this->getSimpleHTMLDOM(self::URI)
         or $this->returnServerError('Could not request Hentai Haven.');
         foreach($html->find('div.zoe-grid') as $element) {
             $item = array();
diff --git a/bridges/IdenticaBridge.php b/bridges/IdenticaBridge.php
index f99bde7..200634e 100644
--- a/bridges/IdenticaBridge.php
+++ b/bridges/IdenticaBridge.php
@@ -1,12 +1,12 @@
 <?php
 class IdenticaBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Identica Bridge";
-	public $uri = "https://identi.ca/";
-	public $description = "Returns user timelines";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Identica Bridge";
+	const URI = "https://identi.ca/";
+	const DESCRIPTION = "Returns user timelines";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'username',
             'required'=>true
@@ -32,7 +32,7 @@ class IdenticaBridge extends BridgeAbstract{
     }
 
     public function getURI(){
-        return $this->uri.urlencode($this->getInput('u'));
+        return self::URI.urlencode($this->getInput('u'));
     }
 
     public function getCacheDuration(){
diff --git a/bridges/InstagramBridge.php b/bridges/InstagramBridge.php
index bec19b2..6105603 100644
--- a/bridges/InstagramBridge.php
+++ b/bridges/InstagramBridge.php
@@ -1,12 +1,12 @@
 <?php
 class InstagramBridge extends BridgeAbstract{
 
-	public $maintainer = "pauder";
-	public $name = "Instagram Bridge";
-	public $uri = "http://instagram.com/";
-	public $description = "Returns the newest images";
+	const MAINTAINER = "pauder";
+	const NAME = "Instagram Bridge";
+	const URI = "http://instagram.com/";
+	const DESCRIPTION = "Returns the newest images";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'username',
             'required'=>true
@@ -46,7 +46,7 @@ class InstagramBridge extends BridgeAbstract{
         {
 
         	$item = array();
-        	$item['uri'] = $this->uri.'/p/'.$media->code.'/';
+        	$item['uri'] = self::URI.'/p/'.$media->code.'/';
         	$item['content'] = '<img src="' . htmlentities($media->display_src) . '" />';
         	if (isset($media->caption))
         	{
@@ -65,7 +65,7 @@ class InstagramBridge extends BridgeAbstract{
     }
 
     public function getURI(){
-        return $this->uri.urlencode($this->getInput('u'));
+        return self::URI.urlencode($this->getInput('u'));
     }
 }
 
diff --git a/bridges/IsoHuntBridge.php b/bridges/IsoHuntBridge.php
index f99ceef..4c4b268 100644
--- a/bridges/IsoHuntBridge.php
+++ b/bridges/IsoHuntBridge.php
@@ -1,11 +1,11 @@
 <?php
 class IsoHuntBridge extends BridgeAbstract{
-  public $maintainer = 'logmanoriginal';
-  public $name = 'isoHunt Bridge';
-  public $uri = 'https://isohunt.to/';
-  public $description = 'Returns the latest results by category or search result';
+  const MAINTAINER = 'logmanoriginal';
+  const NAME = 'isoHunt Bridge';
+  const URI = 'https://isohunt.to/';
+  const DESCRIPTION = 'Returns the latest results by category or search result';
 
-  public $parameters = array(
+  const PARAMETERS = array(
     /*
      * Get feeds for one of the "latest" categories
      * Notice: The categories "News" and "Top Searches" are received from the main page
@@ -90,7 +90,7 @@ class IsoHuntBridge extends BridgeAbstract{
   );
 
   public  function getURI(){
-    $uri=$this->uri;
+    $uri=self::URI;
     switch($this->queriedContext){
     case 'By "Latest" category':
       switch($this->getInput('latest_category')){
@@ -132,27 +132,27 @@ class IsoHuntBridge extends BridgeAbstract{
       $categoryName =
         array_search(
           $this->getInput('latest_category'),
-          $this->parameters['By "Latest" category']['latest_category']['values']
+          self::PARAMETERS['By "Latest" category']['latest_category']['values']
         );
-      $name = 'Latest '.$categoryName.' - ' . $this->name;
+      $name = 'Latest '.$categoryName.' - ' . self::NAME;
       break;
 
     case 'By "Torrent" category':
       $categoryName =
         array_search(
           $this->getInput('torrent_category'),
-          $this->parameters['By "Torrent" category']['torrent_category']['values']
+          self::PARAMETERS['By "Torrent" category']['torrent_category']['values']
         );
-      $name = 'Category: ' . $categoryName . ' - ' . $this->name;
+      $name = 'Category: ' . $categoryName . ' - ' . self::NAME;
       break;
 
     case 'Search torrent by name':
       $categoryName =
         array_search(
           $this->getInput('search_category'),
-          $this->parameters['Search torrent by name']['search_category']['values']
+          self::PARAMETERS['Search torrent by name']['search_category']['values']
         );
-      $name = 'Search: "' . $this->getInput('search_name') . '" in category: ' . $categoryName . ' - ' . $this->name;
+      $name = 'Search: "' . $this->getInput('search_name') . '" in category: ' . $categoryName . ' - ' . self::NAME;
       break;
     }
 
@@ -446,7 +446,7 @@ class IsoHuntBridge extends BridgeAbstract{
   }
 
   private function fix_relative_uri($uri){
-    return preg_replace('/\//i', $this->uri, $uri, 1);
+    return preg_replace('/\//i', self::URI, $uri, 1);
   }
 
   private function build_category_uri($category, $order_popularity = false){
diff --git a/bridges/JapanExpoBridge.php b/bridges/JapanExpoBridge.php
index b02304a..db8a202 100644
--- a/bridges/JapanExpoBridge.php
+++ b/bridges/JapanExpoBridge.php
@@ -1,11 +1,11 @@
 <?php
 class JapanExpoBridge extends HttpCachingBridgeAbstract {
 
-    public $maintainer = 'Ginko';
-    public $name = 'Japan Expo Actualités';
-    public $uri = 'http://www.japan-expo-paris.com/fr/actualites';
-    public $description = 'Returns most recent entries from Japan Expo actualités.';
-    public $parameters = array( array(
+    const MAINTAINER = 'Ginko';
+    const NAME = 'Japan Expo Actualités';
+    const URI = 'http://www.japan-expo-paris.com/fr/actualites';
+    const DESCRIPTION = 'Returns most recent entries from Japan Expo actualités.';
+    const PARAMETERS = array( array(
         'mode'=>array(
             'name'=>'Show full contents',
             'type'=>'checkbox',
@@ -42,8 +42,8 @@ class JapanExpoBridge extends HttpCachingBridgeAbstract {
             }
         };
 
-        $html = $this->getSimpleHTMLDOM($this->uri)
-          or $this->returnServerError('Could not request JapanExpo: '.$this->uri);
+        $html = $this->getSimpleHTMLDOM(self::URI)
+          or $this->returnServerError('Could not request JapanExpo: '.self::URI);
         $fullcontent = $this->getInput('mode');
         $count = 0;
 
diff --git a/bridges/KonachanBridge.php b/bridges/KonachanBridge.php
index 50730dc..0a213fe 100644
--- a/bridges/KonachanBridge.php
+++ b/bridges/KonachanBridge.php
@@ -1,12 +1,12 @@
 <?php
 class KonachanBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Konachan";
-	public $uri = "http://konachan.com/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Konachan";
+	const URI = "http://konachan.com/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'defaultValue'=>1,
@@ -17,7 +17,7 @@ class KonachanBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'/post?'
+            self::URI.'/post?'
             .'&page='.$this->getInput('p')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Konachan.');
@@ -30,7 +30,7 @@ class KonachanBridge extends BridgeAbstract{
         foreach($data as $datai) {
 	    $json = json_decode($datai, TRUE);
             $item = array();
-            $item['uri'] = $this->uri.'/post/show/'.$json['id'];
+            $item['uri'] = self::URI.'/post/show/'.$json['id'];
             $item['postid'] = $json['id'];
             $item['timestamp'] = $json['created_at'];
             $item['imageUri'] = $json['file_url'];
diff --git a/bridges/KoreusBridge.php b/bridges/KoreusBridge.php
index 4cb86c8..f079bca 100644
--- a/bridges/KoreusBridge.php
+++ b/bridges/KoreusBridge.php
@@ -1,10 +1,10 @@
 <?php
 class KoreusBridge extends BridgeAbstract{
 
-	public $maintainer = "pit-fgfjiudghdf";
-	public $name = "Koreus";
-	public $uri = "http://www.koreus.com/";
-	public $description = "Returns the 5 newest posts from Koreus (full text)";
+	const MAINTAINER = "pit-fgfjiudghdf";
+	const NAME = "Koreus";
+	const URI = "http://www.koreus.com/";
+	const DESCRIPTION = "Returns the 5 newest posts from Koreus (full text)";
 
 	private function KoreusStripCDATA($string) {
 		$string = str_replace('<![CDATA[', '', $string);
diff --git a/bridges/KununuBridge.php b/bridges/KununuBridge.php
index aa63c34..1162668 100644
--- a/bridges/KununuBridge.php
+++ b/bridges/KununuBridge.php
@@ -1,11 +1,11 @@
 <?php
 class KununuBridge extends HttpCachingBridgeAbstract {
-	public $maintainer = "logmanoriginal";
-	public $name = "Kununu Bridge";
-	public $uri = "https://www.kununu.com/";
-	public $description = "Returns the latest reviews for a company and site of your choice.";
+	const MAINTAINER = "logmanoriginal";
+	const NAME = "Kununu Bridge";
+	const URI = "https://www.kununu.com/";
+	const DESCRIPTION = "Returns the latest reviews for a company and site of your choice.";
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'global' => array(
           'site'=>array(
             'name'=>'Site',
@@ -55,12 +55,12 @@ class KununuBridge extends HttpCachingBridgeAbstract {
             break;
         }
 
-        return $this->uri.$site.'/'.$company.'/'.$section;
+        return self::URI.$site.'/'.$company.'/'.$section;
     }
 
     function getName(){
         $company = $this->encode_umlauts(strtolower(str_replace(' ', '-', trim($this->getInput('company')))));
-        return  ($this->companyName?:$company).' - '.$this->name;
+        return  ($this->companyName?:$company).' - '.self::NAME;
     }
 
 	public function collectData(){
@@ -109,7 +109,7 @@ class KununuBridge extends HttpCachingBridgeAbstract {
 	* Fixes relative URLs in the given text
 	*/
 	private function fix_url($text){
-		return preg_replace('/href=(\'|\")\//i', 'href="'.$this->uri, $text);
+		return preg_replace('/href=(\'|\")\//i', 'href="'.self::URI, $text);
 	}
 
 	/**
@@ -184,7 +184,7 @@ class KununuBridge extends HttpCachingBridgeAbstract {
 		if($anchor === false)
 			$this->returnServerError('Cannot find article URI!');
 
-		return $this->uri . $anchor->href;
+		return self::URI . $anchor->href;
 	}
 
 	/**
diff --git a/bridges/LWNprevBridge.php b/bridges/LWNprevBridge.php
index c267362..704c1d5 100644
--- a/bridges/LWNprevBridge.php
+++ b/bridges/LWNprevBridge.php
@@ -1,12 +1,12 @@
 <?php
 class LWNprevBridge extends BridgeAbstract{
-  public $maintainer = 'Pierre Mazière';
-  public $name = 'LWN Free Weekly Edition';
-  public $uri = 'https://lwn.net/';
-  public $description = 'LWN Free Weekly Edition available one week late';
+  const MAINTAINER = 'Pierre Mazière';
+  const NAME = 'LWN Free Weekly Edition';
+  const URI = 'https://lwn.net/';
+  const DESCRIPTION = 'LWN Free Weekly Edition available one week late';
 
   function getURI(){
-      return $this->uri.'free/bigpage';
+      return self::URI.'free/bigpage';
   }
 
   private function jumpToNextTag(&$node){
@@ -48,7 +48,7 @@ class LWNprevBridge extends BridgeAbstract{
         break;
       }
     }
-    $realURI=$this->uri.$a->getAttribute('href');
+    $realURI=self::URI.$a->getAttribute('href');
     $URICounter=0;
 
     $edition=$html->getElementsByTagName('h1')->item(0)->textContent;
@@ -82,7 +82,7 @@ class LWNprevBridge extends BridgeAbstract{
       $h2FirstChild=$h2->firstChild;
       $this->jumpToNextTag($h2FirstChild);
       if($h2FirstChild->nodeName==='a'){
-        $item['uri']=$this->uri.$h2FirstChild->getAttribute('href');
+        $item['uri']=self::URI.$h2FirstChild->getAttribute('href');
       }else{
         $item['uri']=$realURI.'#'.$URICounter;
       }
diff --git a/bridges/LeBonCoinBridge.php b/bridges/LeBonCoinBridge.php
index fab1a71..6b89f46 100755
--- a/bridges/LeBonCoinBridge.php
+++ b/bridges/LeBonCoinBridge.php
@@ -1,12 +1,12 @@
 <?php
 class LeBonCoinBridge extends BridgeAbstract{
 
-	public $maintainer = "16mhz";
-	public $name = "LeBonCoin";
-	public $uri = "http://www.leboncoin.fr/";
-	public $description = "Returns most recent results from LeBonCoin for a region, and optionally a category and a keyword .";
+	const MAINTAINER = "16mhz";
+	const NAME = "LeBonCoin";
+	const URI = "http://www.leboncoin.fr/";
+	const DESCRIPTION = "Returns most recent results from LeBonCoin for a region, and optionally a category and a keyword .";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
           'k'=>array('name'=>'Mot Clé'),
           'r'=>array(
             'name'=>'Région',
@@ -143,7 +143,7 @@ class LeBonCoinBridge extends BridgeAbstract{
         }
 
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.$category.'/offres/' . $this->getInput('r') . '/?'
+            self::URI.$category.'/offres/' . $this->getInput('r') . '/?'
             .'f=a&th=1&'
             .'q=' . urlencode($this->getInput('k'))
         ) or $this->returnServerError('Could not request LeBonCoin.');
diff --git a/bridges/LeJournalDuGeekBridge.php b/bridges/LeJournalDuGeekBridge.php
index f1b89a1..e08f419 100644
--- a/bridges/LeJournalDuGeekBridge.php
+++ b/bridges/LeJournalDuGeekBridge.php
@@ -1,10 +1,10 @@
 <?php
 class LeJournalDuGeekBridge extends BridgeAbstract{
 
-	public $maintainer = "polopollo";
-	public $name = "journaldugeek.com (FR)";
-	public $uri = "http://www.journaldugeek.com/";
-	public $description = "Returns the 5 newest posts from LeJournalDuGeek (full text).";
+	const MAINTAINER = "polopollo";
+	const NAME = "journaldugeek.com (FR)";
+	const URI = "http://www.journaldugeek.com/";
+	const DESCRIPTION = "Returns the 5 newest posts from LeJournalDuGeek (full text).";
 
 	private function LeJournalDuGeekStripCDATA($string) {
 		$string = str_replace('<![CDATA[', '', $string);
@@ -35,8 +35,8 @@ class LeJournalDuGeekBridge extends BridgeAbstract{
 	}
 
 	public function collectData(){
-        $rssFeed = $this->getSimpleHTMLDOM($this->uri.'rss')
-            or $this->returnServerError('Could not request '.$this->uri.'/rss');
+        $rssFeed = $this->getSimpleHTMLDOM(self::URI.'rss')
+            or $this->returnServerError('Could not request '.self::URI.'/rss');
 		$limit = 0;
 
 		foreach($rssFeed->find('item') as $element) {
diff --git a/bridges/LeMondeInformatiqueBridge.php b/bridges/LeMondeInformatiqueBridge.php
index b744e76..8fd1daa 100644
--- a/bridges/LeMondeInformatiqueBridge.php
+++ b/bridges/LeMondeInformatiqueBridge.php
@@ -1,10 +1,10 @@
 <?php
 class LeMondeInformatiqueBridge extends BridgeAbstract {
 
-    public $maintainer = "ORelio";
-    public $name = "Le Monde Informatique";
-    public $uri = "http://www.lemondeinformatique.fr/";
-    public $description = "Returns the newest articles.";
+    const MAINTAINER = "ORelio";
+    const NAME = "Le Monde Informatique";
+    const URI = "http://www.lemondeinformatique.fr/";
+    const DESCRIPTION = "Returns the newest articles.";
 
     public function collectData(){
 
@@ -28,9 +28,9 @@ class LeMondeInformatiqueBridge extends BridgeAbstract {
             return $article_html;
         }
 
-        $html = $this->getSimpleHTMLDOM($this->uri.'rss/rss.xml')
+        $html = $this->getSimpleHTMLDOM(self::URI.'rss/rss.xml')
             or $this->returnServerError('Could not request LeMondeInformatique: '
-            .$this->uri.'rss/rss.xml');
+            .self::URI.'rss/rss.xml');
         $limit = 0;
 
         foreach($html->find('item') as $element) {
diff --git a/bridges/Les400CulsBridge.php b/bridges/Les400CulsBridge.php
index 3fea2ff..ce56537 100644
--- a/bridges/Les400CulsBridge.php
+++ b/bridges/Les400CulsBridge.php
@@ -1,14 +1,14 @@
 <?php
 class Les400CulsBridge extends RssExpander{
 
-	public $maintainer = "unknown";
-	public $name = "Les 400 Culs";
-	public $uri = "http://sexes.blogs.liberation.fr/";
-	public $description = "La planete sexe vue par Agnes Girard via rss-bridge";
+	const MAINTAINER = "unknown";
+	const NAME = "Les 400 Culs";
+	const URI = "http://sexes.blogs.liberation.fr/";
+	const DESCRIPTION = "La planete sexe vue par Agnes Girard via rss-bridge";
 
 
     public function collectData(){
-        $this->collectExpandableDatas($this->uri.'feeds/');
+        $this->collectExpandableDatas(self::URI.'feeds/');
     }
 
     protected function parseRSSItem($newsItem) {
diff --git a/bridges/LesJoiesDuCodeBridge.php b/bridges/LesJoiesDuCodeBridge.php
index 1d83556..81023b1 100644
--- a/bridges/LesJoiesDuCodeBridge.php
+++ b/bridges/LesJoiesDuCodeBridge.php
@@ -1,13 +1,13 @@
 <?php
 class LesJoiesDuCodeBridge extends BridgeAbstract{
 
-	public $maintainer = "superbaillot.net";
-	public $name = "Les Joies Du Code";
-	public $uri = "http://lesjoiesducode.fr/";
-	public $description = "LesJoiesDuCode";
+	const MAINTAINER = "superbaillot.net";
+	const NAME = "Les Joies Du Code";
+	const URI = "http://lesjoiesducode.fr/";
+	const DESCRIPTION = "LesJoiesDuCode";
 
     public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
             or $this->returnServerError('Could not request LesJoiesDuCode.');
 
         foreach($html->find('div.blog-post') as $element) {
diff --git a/bridges/LichessBridge.php b/bridges/LichessBridge.php
index 4e81e9c..f74c2bd 100644
--- a/bridges/LichessBridge.php
+++ b/bridges/LichessBridge.php
@@ -2,14 +2,14 @@
 
 class LichessBridge  extends HttpCachingBridgeAbstract
 {
-    public $maintainer = 'AmauryCarrade';
-    public $name = 'Lichess Blog';
-    public $uri = 'http://fr.lichess.org/blog';
-    public $description = 'Returns the 5 newest posts from the Lichess blog (full text)';
+    const MAINTAINER = 'AmauryCarrade';
+    const NAME = 'Lichess Blog';
+    const URI = 'http://fr.lichess.org/blog';
+    const DESCRIPTION = 'Returns the 5 newest posts from the Lichess blog (full text)';
 
     public function collectData()
     {
-        $xml_feed = $this->getSimpleHTMLDOM($this->uri.'.atom')
+        $xml_feed = $this->getSimpleHTMLDOM(self::URI.'.atom')
             or $this->returnServerError('Could not retrieve Lichess blog feed.');
 
         $posts_loaded = 0;
diff --git a/bridges/LinkedInCompanyBridge.php b/bridges/LinkedInCompanyBridge.php
index e23f9d4..6ccbba5 100644
--- a/bridges/LinkedInCompanyBridge.php
+++ b/bridges/LinkedInCompanyBridge.php
@@ -1,12 +1,12 @@
 <?php
 class LinkedInCompanyBridge extends BridgeAbstract{
 
-	public $maintainer = "regisenguehard";
-	public $name = "LinkedIn Company";
-	public $uri = "https://www.linkedin.com/";
-	public $description = "Returns most recent actus from Company on LinkedIn. (https://www.linkedin.com/company/<strong style=\"font-weight:bold;\">apple</strong>)";
+	const MAINTAINER = "regisenguehard";
+	const NAME = "LinkedIn Company";
+	const URI = "https://www.linkedin.com/";
+	const DESCRIPTION = "Returns most recent actus from Company on LinkedIn. (https://www.linkedin.com/company/<strong style=\"font-weight:bold;\">apple</strong>)";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'c'=>array(
             'name'=>'Company name',
             'required'=>true
@@ -15,7 +15,7 @@ class LinkedInCompanyBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = '';
-        $link = $this->uri.'company/'.$this->getInput('c');
+        $link = self::URI.'company/'.$this->getInput('c');
 
         $html = $this->getSimpleHTMLDOM($link)
             or $this->returnServerError('Could not request LinkedIn.');
diff --git a/bridges/LolibooruBridge.php b/bridges/LolibooruBridge.php
index 1bcf037..d2f9066 100644
--- a/bridges/LolibooruBridge.php
+++ b/bridges/LolibooruBridge.php
@@ -1,12 +1,12 @@
 <?php
 class LolibooruBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Lolibooru";
-	public $uri = "http://lolibooru.moe/";
-	public $description = "Returns images from given page and tags";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Lolibooru";
+	const URI = "http://lolibooru.moe/";
+	const DESCRIPTION = "Returns images from given page and tags";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'defaultValue'=>1,
@@ -17,7 +17,7 @@ class LolibooruBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'post?'
+            self::URI.'post?'
             .'&page='.$this->getInput('p')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Lolibooru.');
@@ -30,7 +30,7 @@ class LolibooruBridge extends BridgeAbstract{
         foreach($data as $datai) {
 	    $json = json_decode($datai, TRUE);
             $item = array();
-            $item['uri'] = $this->uri.'post/show/'.$json['id'];
+            $item['uri'] = self::URI.'post/show/'.$json['id'];
             $item['postid'] = $json['id'];
             $item['timestamp'] = $json['created_at'];
             $item['imageUri'] = $json['file_url'];
diff --git a/bridges/MangareaderBridge.php b/bridges/MangareaderBridge.php
index cdf5a70..ce93ed3 100644
--- a/bridges/MangareaderBridge.php
+++ b/bridges/MangareaderBridge.php
@@ -2,12 +2,12 @@
 define('MANGAREADER_LIMIT', 10); // The default limit
 class MangareaderBridge extends BridgeAbstract{
 
-	public $maintainer = "logmanoriginal";
-	public $name = "Mangareader Bridge";
-	public $uri = "http://www.mangareader.net/";
-	public $description = "Returns the latest updates, popular mangas or manga updates (new chapters)";
+	const MAINTAINER = "logmanoriginal";
+	const NAME = "Mangareader Bridge";
+	const URI = "http://www.mangareader.net/";
+	const DESCRIPTION = "Returns the latest updates, popular mangas or manga updates (new chapters)";
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'Get latest updates' => array(),
         'Get popular mangas' => array(
           'category'=>array(
@@ -108,7 +108,7 @@ class MangareaderBridge extends BridgeAbstract{
 
                 if (isset($manga) && $chapters->length >= 1){
                     $item = array();
-                    $item['uri'] = $this->uri. htmlspecialchars($manga->getAttribute('href'));
+                    $item['uri'] = self::URI. htmlspecialchars($manga->getAttribute('href'));
                     $item['title'] = htmlspecialchars($manga->nodeValue);
 
                     // Add each chapter to the feed
@@ -118,7 +118,7 @@ class MangareaderBridge extends BridgeAbstract{
                         if($item['content'] <> ""){
                             $item['content'] .= "<br>";
                         }
-                        $item['content'] .= "<a href='" .$this->uri. htmlspecialchars($chapter->getAttribute('href')) . "'>" . htmlspecialchars($chapter->nodeValue) . "</a>";
+                        $item['content'] .= "<a href='" .self::URI. htmlspecialchars($chapter->getAttribute('href')) . "'>" . htmlspecialchars($chapter->nodeValue) . "</a>";
                     }
 
                     $this->items[] = $item;
@@ -142,7 +142,7 @@ class MangareaderBridge extends BridgeAbstract{
 
                 $item = array();
                 $item['title'] = htmlspecialchars($xpath->query(".//*[@class='manga_name']//a", $manga)->item(0)->nodeValue);
-                $item['uri'] = $this->uri . $xpath->query(".//*[@class='manga_name']//a", $manga)->item(0)->getAttribute('href');
+                $item['uri'] = self::URI . $xpath->query(".//*[@class='manga_name']//a", $manga)->item(0)->getAttribute('href');
                 $item['author'] = htmlspecialchars($xpath->query("//*[@class='author_name']", $manga)->item(0)->nodeValue);
                 $item['chaptercount'] = $xpath->query(".//*[@class='chapter_count']", $manga)->item(0)->nodeValue;
                 $item['genre'] = htmlspecialchars($xpath->query(".//*[@class='manga_genre']", $manga)->item(0)->nodeValue);
@@ -170,7 +170,7 @@ class MangareaderBridge extends BridgeAbstract{
             foreach ($chapters as $chapter){
                 $item = array();
                 $item['title'] = htmlspecialchars($xpath->query("td[1]", $chapter)->item(0)->nodeValue);
-                $item['uri'] = $this->uri . $xpath->query("td[1]/a", $chapter)->item(0)->getAttribute('href');
+                $item['uri'] = self::URI . $xpath->query("td[1]/a", $chapter)->item(0)->getAttribute('href');
                 $item['timestamp'] = strtotime($xpath->query("td[2]", $chapter)->item(0)->nodeValue);
                 array_unshift($this->items, $item);
             }
@@ -201,7 +201,7 @@ class MangareaderBridge extends BridgeAbstract{
             $path = $this->getInput('path');
             break;
         }
-        return $this->uri . $path;
+        return self::URI . $path;
     }
 
 
diff --git a/bridges/MilbooruBridge.php b/bridges/MilbooruBridge.php
index 1dc08cf..43799df 100644
--- a/bridges/MilbooruBridge.php
+++ b/bridges/MilbooruBridge.php
@@ -2,12 +2,12 @@
 class MilbooruBridge extends BridgeAbstract{
 
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Milbooru";
-	public $uri = "http://sheslostcontrol.net/moe/shimmie/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Milbooru";
+	const URI = "http://sheslostcontrol.net/moe/shimmie/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -17,15 +17,15 @@ class MilbooruBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'?q=/post/list/'.urlencode($this->getInput('t')).'/'.$this->getInput('p')
+            self::URI.'?q=/post/list/'.urlencode($this->getInput('t')).'/'.$this->getInput('p')
         )or $this->returnServerError('Could not request Milbooru.');
 
 	foreach($html->find('div[class=shm-image-list] span[class=thumb]') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->find('a', 0)->getAttribute('data-post-id'));
 		$item['timestamp'] = time();
-		$thumbnailUri = $this->uri.$element->find('img', 0)->src;
+		$thumbnailUri = self::URI.$element->find('img', 0)->src;
 		$item['tags'] = $element->find('a', 0)->getAttribute('data-tags');
 		$item['title'] = 'Milbooru | '.$item['postid'];
 		$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br>Tags: '.$item['tags'];
diff --git a/bridges/MondeDiploBridge.php b/bridges/MondeDiploBridge.php
index 2a6afc4..c9d20af 100644
--- a/bridges/MondeDiploBridge.php
+++ b/bridges/MondeDiploBridge.php
@@ -1,19 +1,19 @@
 <?php
 class MondeDiploBridge extends BridgeAbstract{
 
-	public $maintainer = "Pitchoule";
-	public $name = 'Monde Diplomatique';
-	public $uri = 'http://www.monde-diplomatique.fr/';
-	public $description = "Returns most recent results from MondeDiplo.";
+	const MAINTAINER = "Pitchoule";
+	const NAME = 'Monde Diplomatique';
+	const URI = 'http://www.monde-diplomatique.fr/';
+	const DESCRIPTION = "Returns most recent results from MondeDiplo.";
 
 	public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri)
-            or $this->returnServerError('Could not request MondeDiplo. for : ' . $this->uri);
+        $html = $this->getSimpleHTMLDOM(self::URI)
+            or $this->returnServerError('Could not request MondeDiplo. for : ' . self::URI);
 
 		foreach($html->find('div.unarticle') as $article) {
 			$element = $article->parent();
 			$item = array();
-			$item['uri'] = $this->uri . $element->href;
+			$item['uri'] = self::URI . $element->href;
 			$item['title'] = $element->find('h3', 0)->plaintext;
 			$item['content'] = $element->find('div.dates_auteurs', 0)->plaintext . '<br>' . strstr($element->find('div', 0)->plaintext, $element->find('div.dates_auteurs', 0)->plaintext, true);
 			$this->items[] = $item;
diff --git a/bridges/MsnMondeBridge.php b/bridges/MsnMondeBridge.php
index 5e48195..f7b4c77 100644
--- a/bridges/MsnMondeBridge.php
+++ b/bridges/MsnMondeBridge.php
@@ -1,13 +1,13 @@
 <?php
 class MsnMondeBridge extends BridgeAbstract{
 
-	public $maintainer = "kranack";
-	public $name = 'MSN Actu Monde';
-	public $uri = 'http://www.msn.com/';
-	public $description = "Returns the 10 newest posts from MSN Actualités (full text)";
+	const MAINTAINER = "kranack";
+	const NAME = 'MSN Actu Monde';
+	const URI = 'http://www.msn.com/';
+	const DESCRIPTION = "Returns the 10 newest posts from MSN Actualités (full text)";
 
     public function getURI(){
-        return $this->uri.'fr-fr/actualite/monde';
+        return self::URI.'fr-fr/actualite/monde';
     }
 
 	private function MsnMondeExtractContent($url, &$item) {
@@ -23,7 +23,7 @@ class MsnMondeBridge extends BridgeAbstract{
 			if($limit < 10) {
 				$item = array();
 				$item['title'] = utf8_decode($article->find('h4', 0)->innertext);
-				$item['uri'] = $this->uri . utf8_decode($article->find('a', 0)->href);
+				$item['uri'] = self::URI . utf8_decode($article->find('a', 0)->href);
 				$this->MsnMondeExtractContent($item['uri'], $item);
 				$this->items[] = $item;
 				$limit++;
diff --git a/bridges/MspabooruBridge.php b/bridges/MspabooruBridge.php
index e255f9e..821207e 100644
--- a/bridges/MspabooruBridge.php
+++ b/bridges/MspabooruBridge.php
@@ -2,12 +2,12 @@
 class MspabooruBridge extends BridgeAbstract{
 
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Mspabooru";
-	public $uri = "http://mspabooru.com/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Mspabooru";
+	const URI = "http://mspabooru.com/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -17,7 +17,7 @@ class MspabooruBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'index.php?page=post&s=list&'
+            self::URI.'index.php?page=post&s=list&'
             .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Mspabooru.');
@@ -25,7 +25,7 @@ class MspabooruBridge extends BridgeAbstract{
 
 	foreach($html->find('div[class=content] span') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
 		$item['timestamp'] = time();
 		$thumbnailUri = $element->find('img', 0)->src;
diff --git a/bridges/NakedSecurityBridge.php b/bridges/NakedSecurityBridge.php
index 5d0fb36..893bc87 100644
--- a/bridges/NakedSecurityBridge.php
+++ b/bridges/NakedSecurityBridge.php
@@ -1,10 +1,10 @@
 <?php
 class NakedSecurityBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'Naked Security';
-    public $uri = 'https://nakedsecurity.sophos.com/';
-    public $description = 'Returns the newest articles.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'Naked Security';
+    const URI = 'https://nakedsecurity.sophos.com/';
+    const DESCRIPTION = 'Returns the newest articles.';
 
     public function collectData(){
 
diff --git a/bridges/NasaApodBridge.php b/bridges/NasaApodBridge.php
index 9b333c8..93da332 100644
--- a/bridges/NasaApodBridge.php
+++ b/bridges/NasaApodBridge.php
@@ -1,14 +1,14 @@
 <?php
 class NasaApodBridge extends BridgeAbstract{
 
-	public $maintainer = "corenting";
-	public $name = "NASA APOD Bridge";
-	public $uri = "http://apod.nasa.gov/apod/";
-	public $description = "Returns the 3 latest NASA APOD pictures and explanations";
+	const MAINTAINER = "corenting";
+	const NAME = "NASA APOD Bridge";
+	const URI = "http://apod.nasa.gov/apod/";
+	const DESCRIPTION = "Returns the 3 latest NASA APOD pictures and explanations";
 
   public function collectData(){
 
-    $html = $this->getSimpleHTMLDOM($this->uri.'archivepix.html') or $this->returnServerError('Error while downloading the website content');
+    $html = $this->getSimpleHTMLDOM(self::URI.'archivepix.html') or $this->returnServerError('Error while downloading the website content');
     $list = explode("<br>", $html->find('b', 0)->innertext);
 
     for($i = 0; $i < 3;$i++)
@@ -17,7 +17,7 @@ class NasaApodBridge extends BridgeAbstract{
       $item = array();
 
       $uri_page = $html->find('a',$i + 3)->href;
-      $uri = $this->uri.$uri_page;
+      $uri = self::URI.$uri_page;
       $item['uri'] = $uri;
 
       $picture_html = $this->getSimpleHTMLDOM($uri);
diff --git a/bridges/NeuviemeArtBridge.php b/bridges/NeuviemeArtBridge.php
index 54261c2..6374cf0 100644
--- a/bridges/NeuviemeArtBridge.php
+++ b/bridges/NeuviemeArtBridge.php
@@ -1,10 +1,10 @@
 <?php
 class NeuviemeArtBridge extends BridgeAbstract {
 
-    public $maintainer = "ORelio";
-    public $name = '9ème Art Bridge';
-    public $uri = "http://www.9emeart.fr/";
-    public $description = "Returns the newest articles.";
+    const MAINTAINER = "ORelio";
+    const NAME = '9ème Art Bridge';
+    const URI = "http://www.9emeart.fr/";
+    const DESCRIPTION = "Returns the newest articles.";
 
     public function collectData(){
 
@@ -16,7 +16,7 @@ class NeuviemeArtBridge extends BridgeAbstract {
             } return $string;
         }
 
-        $feedUrl = $this->uri.'9emeart.rss';
+        $feedUrl = self::URI.'9emeart.rss';
         $html = $this->getSimpleHTMLDOM($feedUrl) or $this->returnServerError('Could not request 9eme Art: '.$feedUrl);
         $limit = 0;
 
@@ -32,9 +32,9 @@ class NeuviemeArtBridge extends BridgeAbstract {
                 $article_image = $element->find('enclosure', 0)->url;
                 foreach ($article_html->find('img.img_full') as $img)
                     if ($img->alt == $article_title)
-                        $article_image = $this->uri.$img->src;
+                        $article_image = self::URI.$img->src;
                 $article_content = '<p><img src="'.$article_image.'" /></p>'
-                    .str_replace('src="/', 'src="'.$this->uri, $article_html->find('div.newsGenerique_con', 0)->innertext);
+                    .str_replace('src="/', 'src="'.self::URI, $article_html->find('div.newsGenerique_con', 0)->innertext);
                 $article_content = StripWithDelimiters($article_content, '<script', '</script>');
                 $article_content = StripWithDelimiters($article_content, '<style', '</style>');
                 $article_content = StripWithDelimiters($article_content, '<link', '>');
diff --git a/bridges/NextInpactBridge.php b/bridges/NextInpactBridge.php
index c5e39ed..8c35753 100644
--- a/bridges/NextInpactBridge.php
+++ b/bridges/NextInpactBridge.php
@@ -1,10 +1,10 @@
 <?php
 class NextInpactBridge extends BridgeAbstract {
 
-	public $maintainer = "qwertygc";
-	public $name = "NextInpact Bridge";
-	public $uri = "http://www.nextinpact.com/";
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "qwertygc";
+	const NAME = "NextInpact Bridge";
+	const URI = "http://www.nextinpact.com/";
+	const DESCRIPTION = "Returns the newest articles.";
 
 	private function StripCDATA($string) {
 		$string = str_replace('<![CDATA[', '', $string);
@@ -24,7 +24,7 @@ class NextInpactBridge extends BridgeAbstract {
 	}
 
 	public function collectData(){
-		$html = $this->getSimpleHTMLDOM($this->uri.'rss/news.xml') or $this->returnServerError('Could not request NextInpact.');
+		$html = $this->getSimpleHTMLDOM(self::URI.'rss/news.xml') or $this->returnServerError('Could not request NextInpact.');
 		$limit = 0;
 
 		foreach($html->find('item') as $element) {
diff --git a/bridges/NextgovBridge.php b/bridges/NextgovBridge.php
index f7e508e..ee4f299 100644
--- a/bridges/NextgovBridge.php
+++ b/bridges/NextgovBridge.php
@@ -1,12 +1,12 @@
 <?php
 class NextgovBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'Nextgov Bridge';
-    public $uri = 'https://www.nextgov.com/';
-    public $description = 'USA Federal technology news, best practices, and web 2.0 tools.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'Nextgov Bridge';
+    const URI = 'https://www.nextgov.com/';
+    const DESCRIPTION = 'USA Federal technology news, best practices, and web 2.0 tools.';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'category'=>array(
             'name'=>'Category',
             'type'=>'list',
diff --git a/bridges/NiceMatinBridge.php b/bridges/NiceMatinBridge.php
index 69dd8dd..3c18909 100644
--- a/bridges/NiceMatinBridge.php
+++ b/bridges/NiceMatinBridge.php
@@ -1,10 +1,10 @@
 <?php
 class NiceMatinBridge extends BridgeAbstract{
 
-	public $maintainer = "pit-fgfjiudghdf";
-	public $name = "NiceMatin";
-	public $uri = "http://www.nicematin.com/";
-	public $description = "Returns the 10 newest posts from NiceMatin (full text)";
+	const MAINTAINER = "pit-fgfjiudghdf";
+	const NAME = "NiceMatin";
+	const URI = "http://www.nicematin.com/";
+	const DESCRIPTION = "Returns the 10 newest posts from NiceMatin (full text)";
 
 	private function NiceMatinExtractContent($url) {
 		$html = $this->getSimpleHTMLDOM($url);
@@ -21,7 +21,7 @@ class NiceMatinBridge extends BridgeAbstract{
 	}
 
 	public function collectData(){
-        $html = $this->getSimpleHTMLDOM($this->uri.'derniere-minute/rss')
+        $html = $this->getSimpleHTMLDOM(self::URI.'derniere-minute/rss')
             or $this->returnServerError('Could not request NiceMatin.');
 		$limit = 0;
 
diff --git a/bridges/NovelUpdatesBridge.php b/bridges/NovelUpdatesBridge.php
index 3e61bec..b865737 100644
--- a/bridges/NovelUpdatesBridge.php
+++ b/bridges/NovelUpdatesBridge.php
@@ -1,11 +1,11 @@
 <?php
 class NovelUpdatesBridge extends BridgeAbstract{
 
-	public $maintainer = "albirew";
-	public $name = "Novel Updates";
-	public $uri = "http://www.novelupdates.com/";
-	public $description = "Returns releases from Novel Updates";
-	public $parameters = array( array(
+	const MAINTAINER = "albirew";
+	const NAME = "Novel Updates";
+	const URI = "http://www.novelupdates.com/";
+	const DESCRIPTION = "Returns releases from Novel Updates";
+	const PARAMETERS = array( array(
         'n'=>array(
             'name'=>'Novel URL',
             'patterns'=>'http:\/\/www.novelupdates.com\/.*',
@@ -22,7 +22,7 @@ class NovelUpdatesBridge extends BridgeAbstract{
             $this->returnClientError('NovelUpdates URL only.');
       	if(strpos($thread['path'], 'series/') === FALSE)
             $this->returnClientError('You must specify the novel URL.');
-        $url = $this->uri.$thread['path'].'';
+        $url = self::URI.$thread['path'].'';
         $fullhtml = $this->getSimpleHTMLDOM($url) or $this->returnServerError("Could not request NovelUpdates, novel not found");
         $this->seriesTitle = $fullhtml->find('h4.seriestitle', 0)->plaintext;
         // dirty fix for nasty simpledom bug: https://github.com/sebsauvage/rss-bridge/issues/259
diff --git a/bridges/NumeramaBridge.php b/bridges/NumeramaBridge.php
index 5754e57..1e80aff 100644
--- a/bridges/NumeramaBridge.php
+++ b/bridges/NumeramaBridge.php
@@ -1,10 +1,10 @@
 <?php
 class NumeramaBridge extends HttpCachingBridgeAbstract {
 
-    public $maintainer = 'mitsukarenai';
-    public $name = 'Numerama';
-    public $uri = 'http://www.numerama.com/';
-    public $description = 'Returns the 5 newest posts from Numerama (full text)';
+    const MAINTAINER = 'mitsukarenai';
+    const NAME = 'Numerama';
+    const URI = 'http://www.numerama.com/';
+    const DESCRIPTION = 'Returns the 5 newest posts from Numerama (full text)';
 
     public function collectData(){
 
@@ -14,7 +14,7 @@ class NumeramaBridge extends HttpCachingBridgeAbstract {
             return $string;
         }
 
-        $feed = $this->uri.'feed/';
+        $feed = self::URI.'feed/';
         $html = $this->getSimpleHTMLDOM($feed) or $this->returnServerError('Could not request Numerama: '.$feed);
         $limit = 0;
 
diff --git a/bridges/OpenClassroomsBridge.php b/bridges/OpenClassroomsBridge.php
index 39fc87b..ae4ea10 100644
--- a/bridges/OpenClassroomsBridge.php
+++ b/bridges/OpenClassroomsBridge.php
@@ -1,12 +1,12 @@
 <?php
 class OpenClassroomsBridge extends BridgeAbstract{
 
-	public $maintainer = "sebsauvage";
-	public $name = "OpenClassrooms Bridge";
-	public $uri = "https://openclassrooms.com/";
-	public $description = "Returns latest tutorials from OpenClassrooms.";
+	const MAINTAINER = "sebsauvage";
+	const NAME = "OpenClassrooms Bridge";
+	const URI = "https://openclassrooms.com/";
+	const DESCRIPTION = "Returns latest tutorials from OpenClassrooms.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'Catégorie',
             'type'=>'list',
@@ -26,7 +26,7 @@ class OpenClassroomsBridge extends BridgeAbstract{
     ));
 
     public function getURI(){
-      return $this->uri.'/courses?categories='.$this->getInput('u').'&'
+      return self::URI.'/courses?categories='.$this->getInput('u').'&'
         .'title=&sort=updatedAt+desc';
     }
 
@@ -36,7 +36,7 @@ class OpenClassroomsBridge extends BridgeAbstract{
 
         foreach($html->find('.courseListItem') as $element) {
                 $item = array();
-                $item['uri'] = $this->uri.$element->find('a', 0)->href;
+                $item['uri'] = self::URI.$element->find('a', 0)->href;
                 $item['title'] = $element->find('h3', 0)->plaintext;
                 $item['content'] = $element->find('slidingItem__descriptionContent', 0)->plaintext;
                 $this->items[] = $item;
diff --git a/bridges/ParuVenduImmoBridge.php b/bridges/ParuVenduImmoBridge.php
index 9f1cfd4..e791c7a 100644
--- a/bridges/ParuVenduImmoBridge.php
+++ b/bridges/ParuVenduImmoBridge.php
@@ -1,13 +1,13 @@
 <?php
 class ParuVenduImmoBridge extends BridgeAbstract
 {
-	public $maintainer = "polo2ro";
-	public $name = "Paru Vendu Immobilier";
-	public $uri = "http://www.paruvendu.fr";
-	public $description = "Returns the ads from the first page of search result.";
+	const MAINTAINER = "polo2ro";
+	const NAME = "Paru Vendu Immobilier";
+	const URI = "http://www.paruvendu.fr";
+	const DESCRIPTION = "Returns the ads from the first page of search result.";
 
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'minarea'=>array(
             'name'=>'Minimal surface m²',
             'type'=>'number'
@@ -49,7 +49,7 @@ class ParuVenduImmoBridge extends BridgeAbstract
             list($href) = explode('#', $element->href);
 
             $item = array();
-            $item['uri'] = $this->uri.$href;
+            $item['uri'] = self::URI.$href;
             $item['title'] = $element->title;
             $item['content'] = $img.$desc.$price;
             $this->items[] = $item;
@@ -60,7 +60,7 @@ class ParuVenduImmoBridge extends BridgeAbstract
     public function getURI(){
         $appartment = '&tbApp=1&tbDup=1&tbChb=1&tbLof=1&tbAtl=1&tbPla=1';
         $maison = '&tbMai=1&tbVil=1&tbCha=1&tbPro=1&tbHot=1&tbMou=1&tbFer=1';
-        $link = $this->uri.'/immobilier/annonceimmofo/liste/listeAnnonces?tt=1'.$appartment.$maison;
+        $link = self::URI.'/immobilier/annonceimmofo/liste/listeAnnonces?tt=1'.$appartment.$maison;
 
         if ($this->getInput('minarea')) {
             $link .= '&sur0='.urlencode($this->getInput('minarea'));
diff --git a/bridges/PickyWallpapersBridge.php b/bridges/PickyWallpapersBridge.php
index 001cd1d..1411373 100644
--- a/bridges/PickyWallpapersBridge.php
+++ b/bridges/PickyWallpapersBridge.php
@@ -1,12 +1,12 @@
 <?php
 class PickyWallpapersBridge extends BridgeAbstract {
 
-	public $maintainer = "nel50n";
-	public $name = "PickyWallpapers Bridge";
-	public $uri = "http://www.pickywallpapers.com/";
-	public $description = "Returns the latests wallpapers from PickyWallpapers";
+	const MAINTAINER = "nel50n";
+	const NAME = "PickyWallpapers Bridge";
+	const URI = "http://www.pickywallpapers.com/";
+	const DESCRIPTION = "Returns the latests wallpapers from PickyWallpapers";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
       'c'=>array(
         'name'=>'category',
         'required'=>true
@@ -44,7 +44,7 @@ class PickyWallpapersBridge extends BridgeAbstract {
             foreach($html->find('.items li img') as $element) {
 
                 $item = array();
-                $item['uri'] = str_replace('www', 'wallpaper', $this->uri).'/'.$resolution.'/'.basename($element->src);
+                $item['uri'] = str_replace('www', 'wallpaper', self::URI).'/'.$resolution.'/'.basename($element->src);
                 $item['timestamp'] = time();
                 $item['title'] = $element->alt;
                 $item['content'] = $item['title'].'<br><a href="'.$item['uri'].'">'.$element.'</a>';
@@ -59,7 +59,7 @@ class PickyWallpapersBridge extends BridgeAbstract {
 
     public function getURI(){
         $subcategory = $this->getInput('s');
-        $link = $this->uri.$this->getInput('r').'/'.$this->getInput('c').'/'.$subcategory;
+        $link = self::URI.$this->getInput('r').'/'.$this->getInput('c').'/'.$subcategory;
         return $link;
     }
 
diff --git a/bridges/PinterestBridge.php b/bridges/PinterestBridge.php
index 8f12e8b..12e907a 100644
--- a/bridges/PinterestBridge.php
+++ b/bridges/PinterestBridge.php
@@ -1,12 +1,12 @@
 <?php
 class PinterestBridge extends BridgeAbstract{
 
-	public $maintainer = "pauder";
-	public $name = "Pinterest Bridge";
-	public $uri = "http://www.pinterest.com/";
-	public $description = "Returns the newest images on a board";
+	const MAINTAINER = "pauder";
+	const NAME = "Pinterest Bridge";
+	const URI = "http://www.pinterest.com/";
+	const DESCRIPTION = "Returns the newest images on a board";
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'By username and board' => array(
           'u'=>array(
             'name'=>'username',
@@ -77,10 +77,10 @@ class PinterestBridge extends BridgeAbstract{
     public function getURI(){
       switch($this->queriedContext){
       case 'By username and board':
-        $uri = $this->uri.urlencode($this->getInput('u')).'/'.urlencode($this->getInput('b'));
+        $uri = self::URI.urlencode($this->getInput('u')).'/'.urlencode($this->getInput('b'));
         break;
       case 'From search':
-        $uri = $this->uri.'search/?q='.urlencode($this->getInput('q'));
+        $uri = self::URI.'search/?q='.urlencode($this->getInput('q'));
         break;
       }
 
@@ -96,6 +96,6 @@ class PinterestBridge extends BridgeAbstract{
             $specific = $this->getInput('q');
         break;
       }
-      return $specific .' - '.$this->name;
+      return $specific .' - '.self::NAME;
     }
 }
diff --git a/bridges/PlanetLibreBridge.php b/bridges/PlanetLibreBridge.php
index 6e2024f..1a9a118 100644
--- a/bridges/PlanetLibreBridge.php
+++ b/bridges/PlanetLibreBridge.php
@@ -1,10 +1,10 @@
 <?php
 class PlanetLibreBridge extends BridgeAbstract{
 
-	public $maintainer = "pit-fgfjiudghdf";
-	public $name = "PlanetLibre";
-	public $uri = "http://www.planet-libre.org";
-	public $description = "Returns the 5 newest posts from PlanetLibre (full text)";
+	const MAINTAINER = "pit-fgfjiudghdf";
+	const NAME = "PlanetLibre";
+	const URI = "http://www.planet-libre.org";
+	const DESCRIPTION = "Returns the 5 newest posts from PlanetLibre (full text)";
 
 	private function PlanetLibreExtractContent($url){
 		$html2 = $this->getSimpleHTMLDOM($url);
@@ -13,7 +13,7 @@ class PlanetLibreBridge extends BridgeAbstract{
 	}
 
 	public function collectData(){
-      $html = $this->getSimpleHTMLDOM($this->uri)
+      $html = $this->getSimpleHTMLDOM(self::URI)
         or $this->returnServerError('Could not request PlanetLibre.');
 		$limit = 0;
 		foreach($html->find('div.post') as $element) {
diff --git a/bridges/ProjectMGameBridge.php b/bridges/ProjectMGameBridge.php
index dad98dd..9bfaad0 100644
--- a/bridges/ProjectMGameBridge.php
+++ b/bridges/ProjectMGameBridge.php
@@ -1,19 +1,19 @@
 <?php
 class ProjectMGameBridge extends BridgeAbstract{
 
-	public $maintainer = "corenting";
-	public $name = "Project M Game Bridge";
-	public $uri = "http://projectmgame.com/en/";
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "corenting";
+	const NAME = "Project M Game Bridge";
+	const URI = "http://projectmgame.com/en/";
+	const DESCRIPTION = "Returns the newest articles.";
 
 
   public function collectData(){
-    $html = $this->getSimpleHTMLDOM($this->uri)
+    $html = $this->getSimpleHTMLDOM(self::URI)
       or $this->returnServerError('Error while downloading the Project M homepage');
 
     foreach($html->find('article') as $article) {
       $item = array();
-      $item['uri'] = $this->uri.$article->find('section div.info_block a',0)->href;
+      $item['uri'] = self::URI.$article->find('section div.info_block a',0)->href;
       $item['title'] = $article->find('h1 p',0)->innertext;
 
       $p_list = $article->find('section p');
diff --git a/bridges/RTBFBridge.php b/bridges/RTBFBridge.php
index cee0f0e..2805884 100644
--- a/bridges/RTBFBridge.php
+++ b/bridges/RTBFBridge.php
@@ -1,11 +1,11 @@
 <?php
 class RTBFBridge extends BridgeAbstract {
-	public $name = "RTBF Bridge";
-	public $uri = "http://www.rtbf.be/auvio/emissions/";
-	public $description = "Returns the newest RTBF videos by series ID";
-	public $maintainer = "Frenzie";
+	const NAME = "RTBF Bridge";
+	const URI = "http://www.rtbf.be/auvio/emissions/";
+	const DESCRIPTION = "Returns the newest RTBF videos by series ID";
+	const MAINTAINER = "Frenzie";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'c'=>array(
             'name'=>'series id',
             'exampleValue'=>9500,
@@ -27,7 +27,7 @@ class RTBFBridge extends BridgeAbstract {
             }
 			$item = array();
 			$item['id'] = $element->getAttribute('data-id');
-			$item['uri'] = $this->uri.'detail?id='.$item['id'];
+			$item['uri'] = self::URI.'detail?id='.$item['id'];
 			$thumbnailUriSrcSet = explode(',', $element->find('figure .www-img-16by9 img', 0)->getAttribute('data-srcset'));
 			$thumbnailUriLastSrc = end($thumbnailUriSrcSet);
 			$thumbnailUri = explode(' ', $thumbnailUriLastSrc)[0];
@@ -40,7 +40,7 @@ class RTBFBridge extends BridgeAbstract {
 	}
 
     public function getURI(){
-      return $this->uri.'detail?id='.$this->getInput('c');
+      return self::URI.'detail?id='.$this->getInput('c');
     }
 
 	public function getName(){
diff --git a/bridges/Releases3DSBridge.php b/bridges/Releases3DSBridge.php
index 3e4ccae..a69e9ef 100644
--- a/bridges/Releases3DSBridge.php
+++ b/bridges/Releases3DSBridge.php
@@ -1,10 +1,10 @@
 <?php
 class Releases3DSBridge extends BridgeAbstract {
 
-	public $maintainer = "ORelio";
-	public $name = "3DS Scene Releases";
-	public $uri = "http://www.3dsdb.com/";
-	public $description = "Returns the newest scene releases.";
+	const MAINTAINER = "ORelio";
+	const NAME = "3DS Scene Releases";
+	const URI = "http://www.3dsdb.com/";
+	const DESCRIPTION = "Returns the newest scene releases.";
 
     public function collectData(){
 
@@ -32,7 +32,7 @@ class Releases3DSBridge extends BridgeAbstract {
             }
         }
 
-        $dataUrl = $this->uri.'xml.php';
+        $dataUrl = self::URI.'xml.php';
         $xml = $this->getContents($dataUrl) or $this->returnServerError('Could not request 3dsdb: '.$dataUrl);
         $limit = 0;
 
diff --git a/bridges/ReporterreBridge.php b/bridges/ReporterreBridge.php
index 676604b..5061cbe 100644
--- a/bridges/ReporterreBridge.php
+++ b/bridges/ReporterreBridge.php
@@ -1,10 +1,10 @@
 <?php
 class ReporterreBridge extends BridgeAbstract{
 
-		public $maintainer = "nyutag";
-		public $name = "Reporterre Bridge";
-		public $uri = "http://www.reporterre.net/";
-		public $description = "Returns the newest articles.";
+		const MAINTAINER = "nyutag";
+		const NAME = "Reporterre Bridge";
+		const URI = "http://www.reporterre.net/";
+		const DESCRIPTION = "Returns the newest articles.";
 
 		private function ExtractContentReporterre($url) {
 			$html2 = $this->getSimpleHTMLDOM($url);
@@ -17,14 +17,14 @@ class ReporterreBridge extends BridgeAbstract{
 			unset ($html2);
 
 			// Replace all relative urls with absolute ones
-			$text = preg_replace('/(href|src)(\=[\"\'])(?!http)([^"\']+)/ims', "$1$2" . $this->uri . "$3", $text);
+			$text = preg_replace('/(href|src)(\=[\"\'])(?!http)([^"\']+)/ims', "$1$2" . self::URI . "$3", $text);
 
 			$text = strip_tags($text, '<p><br><a><img>');
 			return $text;
 		}
 
 	public function collectData(){
-		$html = $this->getSimpleHTMLDOM($this->uri.'spip.php?page=backend') or $this->returnServerError('Could not request Reporterre.');
+		$html = $this->getSimpleHTMLDOM(self::URI.'spip.php?page=backend') or $this->returnServerError('Could not request Reporterre.');
 		$limit = 0;
 
 		foreach($html->find('item') as $element) {
diff --git a/bridges/Rue89Bridge.php b/bridges/Rue89Bridge.php
index 978223f..ab18950 100644
--- a/bridges/Rue89Bridge.php
+++ b/bridges/Rue89Bridge.php
@@ -1,10 +1,10 @@
 <?php
 class Rue89Bridge extends BridgeAbstract{
 
-	public $maintainer = "pit-fgfjiudghdf";
-	public $name = "Rue89";
-	public $uri = "http://rue89.nouvelobs.com/";
-	public $description = "Returns the 5 newest posts from Rue89 (full text)";
+	const MAINTAINER = "pit-fgfjiudghdf";
+	const NAME = "Rue89";
+	const URI = "http://rue89.nouvelobs.com/";
+	const DESCRIPTION = "Returns the 5 newest posts from Rue89 (full text)";
 
 	private function rue89getDatas($url){
 
diff --git a/bridges/Rule34Bridge.php b/bridges/Rule34Bridge.php
index 436b909..541184d 100644
--- a/bridges/Rule34Bridge.php
+++ b/bridges/Rule34Bridge.php
@@ -1,12 +1,12 @@
 <?php
 class Rule34Bridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Rule34";
-	public $uri = "http://rule34.xxx/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Rule34";
+	const URI = "http://rule34.xxx/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -16,7 +16,7 @@ class Rule34Bridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'index.php?page=post&s=list&'
+            self::URI.'index.php?page=post&s=list&'
             .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Rule34.');
@@ -24,7 +24,7 @@ class Rule34Bridge extends BridgeAbstract{
 
 	foreach($html->find('div[class=content] span') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
 		$item['timestamp'] = time();
 		$thumbnailUri = $element->find('img', 0)->src;
diff --git a/bridges/Rule34pahealBridge.php b/bridges/Rule34pahealBridge.php
index af3608e..54259a3 100644
--- a/bridges/Rule34pahealBridge.php
+++ b/bridges/Rule34pahealBridge.php
@@ -1,12 +1,12 @@
 <?php
 class Rule34pahealBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Rule34paheal";
-	public $uri = "http://rule34.paheal.net/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Rule34paheal";
+	const URI = "http://rule34.paheal.net/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -16,13 +16,13 @@ class Rule34pahealBridge extends BridgeAbstract{
 
 
     public function collectData(){
-      $html = $this->getSimpleHTMLDOM($this->uri.'post/list/'.$tags.'/'.$page)
+      $html = $this->getSimpleHTMLDOM(self::URI.'post/list/'.$tags.'/'.$page)
         or $this->returnServerError('Could not request Rule34paheal.');
 
 
 	foreach($html->find('div[class=shm-image-list] div[class=shm-thumb]') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->find('img', 0)->getAttribute('id'));
 		$item['timestamp'] = time();
 		$thumbnailUri = $element->find('img', 0)->src;
diff --git a/bridges/SafebooruBridge.php b/bridges/SafebooruBridge.php
index 9397552..d27702c 100644
--- a/bridges/SafebooruBridge.php
+++ b/bridges/SafebooruBridge.php
@@ -1,12 +1,12 @@
 <?php
 class SafebooruBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Safebooru";
-	public $uri = "http://safebooru.org/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Safebooru";
+	const URI = "http://safebooru.org/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -16,14 +16,14 @@ class SafebooruBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'index.php?page=post&s=list&'
+            self::URI.'index.php?page=post&s=list&'
             .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*40:'')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Safebooru.');
 
 	foreach($html->find('div[class=content] span') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
 		$item['timestamp'] = time();
 		$thumbnailUri = $element->find('img', 0)->src;
diff --git a/bridges/SakugabooruBridge.php b/bridges/SakugabooruBridge.php
index c83eee5..86ffa5d 100644
--- a/bridges/SakugabooruBridge.php
+++ b/bridges/SakugabooruBridge.php
@@ -1,12 +1,12 @@
 <?php
 class SakugabooruBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Sakugabooru";
-	public $uri = "http://sakuga.yshi.org/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Sakugabooru";
+	const URI = "http://sakuga.yshi.org/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'defaultValue'=>1,
@@ -17,7 +17,7 @@ class SakugabooruBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'post?'
+            self::URI.'post?'
             .'&page='.$this->getInput('p')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Sakugabooru.');
@@ -30,7 +30,7 @@ class SakugabooruBridge extends BridgeAbstract{
         foreach($data as $datai) {
 	    $json = json_decode($datai, TRUE);
             $item = array();
-            $item['uri'] = $this->uri.'/post/show/'.$json['id'];
+            $item['uri'] = self::URI.'/post/show/'.$json['id'];
             $item['postid'] = $json['id'];
             $item['timestamp'] = $json['created_at'];
             $item['imageUri'] = $json['file_url'];
diff --git a/bridges/ScmbBridge.php b/bridges/ScmbBridge.php
index 0e0974b..e22b73c 100644
--- a/bridges/ScmbBridge.php
+++ b/bridges/ScmbBridge.php
@@ -1,19 +1,19 @@
 <?php
 class ScmbBridge extends BridgeAbstract{
 
-	public $maintainer = "Astalaseven";
-	public $name = "Se Coucher Moins Bête Bridge";
-	public $uri = "http://secouchermoinsbete.fr/";
-	public $description = "Returns the newest anecdotes.";
+	const MAINTAINER = "Astalaseven";
+	const NAME = "Se Coucher Moins Bête Bridge";
+	const URI = "http://secouchermoinsbete.fr/";
+	const DESCRIPTION = "Returns the newest anecdotes.";
 
     public function collectData(){
         $html = '';
-        $html = $this->getSimpleHTMLDOM($this->uri)
+        $html = $this->getSimpleHTMLDOM(self::URI)
           or $this->returnServerError('Could not request Se Coucher Moins Bete.');
 
         foreach($html->find('article') as $article) {
         	$item = array();
-			$item['uri'] = $this->uri.$article->find('p.summary a',0)->href;
+			$item['uri'] = self::URI.$article->find('p.summary a',0)->href;
 			$item['title'] = $article->find('header h1 a',0)->innertext;
 
 			$article->find('span.read-more',0)->outertext=''; // remove text "En savoir plus" from anecdote content
diff --git a/bridges/ScoopItBridge.php b/bridges/ScoopItBridge.php
index db42428..810edb8 100644
--- a/bridges/ScoopItBridge.php
+++ b/bridges/ScoopItBridge.php
@@ -1,12 +1,12 @@
 <?php
 class ScoopItBridge extends BridgeAbstract{
 
-	public $maintainer = "Pitchoule";
-	public $name = "ScoopIt";
-	public $uri = "http://www.scoop.it/";
-	public $description = "Returns most recent results from ScoopIt.";
+	const MAINTAINER = "Pitchoule";
+	const NAME = "ScoopIt";
+	const URI = "http://www.scoop.it/";
+	const DESCRIPTION = "Returns most recent results from ScoopIt.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'keyword',
             'required'=>true
@@ -15,7 +15,7 @@ class ScoopItBridge extends BridgeAbstract{
 
     public function collectData(){
        $this->request = $this->getInput('u');
-       $link = $this->uri.'search?q=' .urlencode($this->getInput('u'));
+       $link = self::URI.'search?q=' .urlencode($this->getInput('u'));
 
        $html = $this->getSimpleHTMLDOM($link)
          or $this->returnServerError('Could not request ScoopIt. for : ' . $link);
diff --git a/bridges/SensCritiqueBridge.php b/bridges/SensCritiqueBridge.php
index a202e0c..32cd952 100644
--- a/bridges/SensCritiqueBridge.php
+++ b/bridges/SensCritiqueBridge.php
@@ -1,12 +1,12 @@
 <?php
 class SensCritiqueBridge extends BridgeAbstract {
 
-	public $maintainer = "kranack";
-	public $name = "Sens Critique";
-	public $uri = "http://www.senscritique.com/";
-	public $description = "Sens Critique news";
+	const MAINTAINER = "kranack";
+	const NAME = "Sens Critique";
+	const URI = "http://www.senscritique.com/";
+	const DESCRIPTION = "Sens Critique news";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'm'=>array(
             'name'=>'Movies',
             'type'=>'checkbox'
@@ -35,9 +35,9 @@ class SensCritiqueBridge extends BridgeAbstract {
 
 	public function collectData(){
       $categories=array();
-      foreach($this->parameters[$this->queriedContext] as $category=>$properties){
+      foreach(self::PARAMETERS[$this->queriedContext] as $category=>$properties){
         if($this->getInput($category)){
-          $uri=$this->uri;
+          $uri=self::URI;
           switch($category){
           case 'm': $uri.='films/cette-semaine'; break;
           case 's': $uri.='series/actualite'; break;
diff --git a/bridges/Sexactu.php b/bridges/Sexactu.php
index f6647b1..e78098b 100644
--- a/bridges/Sexactu.php
+++ b/bridges/Sexactu.php
@@ -1,10 +1,10 @@
 <?php
 class Sexactu extends BridgeAbstract{
 
-	public $maintainer = "Riduidel";
-	public $name = "Sexactu";
-	public $uri = "http://www.gqmagazine.fr";
-	public $description = "Sexactu via rss-bridge";
+	const MAINTAINER = "Riduidel";
+	const NAME = "Sexactu";
+	const URI = "http://www.gqmagazine.fr";
+	const DESCRIPTION = "Sexactu via rss-bridge";
 
     public function collectData(){
 $find = array('janvier', 'février', 'mars', 'avril', 'mai', 'juin', 'juillet', 'août', 'septembre', 'novembre', 'décembre');
@@ -27,7 +27,7 @@ $replace = array('January', 'February', 'March', 'April', 'May', 'June', 'July',
                         $titleData = $titleDetails->find('h2', 0)->find('a',0);
                         $titleTimestamp =$titleDetails->find('h4',0);
                         $item['title'] = $this->correctCase(trim($titleData->innertext));
-                        $item['uri'] = $this->uri.$titleData->href;
+                        $item['uri'] = self::URI.$titleData->href;
 
                         // Fugly date parsing due to the fact my DNS-323 doesn't support php intl extension
                         $dateText = $titleTimestamp->innertext;
@@ -40,7 +40,7 @@ $replace = array('January', 'February', 'March', 'April', 'May', 'June', 'July',
                         $elementText = $element->find('.text-container', 0);
                         // don't forget to replace images server url with gq one
                         foreach($elementText->find('img') as $image) {
-                            $image->src = $this->uri.$image->src;
+                            $image->src = self::URI.$image->src;
                         }
                         $item['content'] = $elementText->innertext;
                         $this->items[] = $item;
@@ -53,7 +53,7 @@ $replace = array('January', 'February', 'March', 'April', 'May', 'June', 'July',
     }
 
     public function getURI(){
-        return $this->uri.'/sexactu';
+        return self::URI.'/sexactu';
     }
 
     public function getCacheDuration(){
diff --git a/bridges/ShanaprojectBridge.php b/bridges/ShanaprojectBridge.php
index 6c117e3..875e43c 100644
--- a/bridges/ShanaprojectBridge.php
+++ b/bridges/ShanaprojectBridge.php
@@ -1,9 +1,9 @@
 <?php
 class ShanaprojectBridge extends BridgeAbstract {
-    public $maintainer = 'logmanoriginal';
-    public $name = 'Shanaproject Bridge';
-    public $uri = 'http://www.shanaproject.com';
-    public $description = 'Returns a list of anime from the current Season Anime List';
+    const MAINTAINER = 'logmanoriginal';
+    const NAME = 'Shanaproject Bridge';
+    const URI = 'http://www.shanaproject.com';
+    const DESCRIPTION = 'Returns a list of anime from the current Season Anime List';
 
     // Returns an html object for the Season Anime List (latest season)
     private function LoadSeasonAnimeList(){
diff --git a/bridges/SiliconBridge.php b/bridges/SiliconBridge.php
index fffccaa..b4efc69 100644
--- a/bridges/SiliconBridge.php
+++ b/bridges/SiliconBridge.php
@@ -1,10 +1,10 @@
 <?php
 class SiliconBridge extends BridgeAbstract {
 
-	public $maintainer = "ORelio";
-	public $name = 'Silicon Bridge';
-	public $uri = 'http://www.silicon.fr/';
-	public $description = "Returns the newest articles.";
+	const MAINTAINER = "ORelio";
+	const NAME = 'Silicon Bridge';
+	const URI = 'http://www.silicon.fr/';
+	const DESCRIPTION = "Returns the newest articles.";
 
     public function collectData(){
 
@@ -14,7 +14,7 @@ class SiliconBridge extends BridgeAbstract {
             return $string;
         }
 
-        $feedUrl = $this->uri.'feed';
+        $feedUrl = self::URI.'feed';
         $html = $this->getSimpleHTMLDOM($feedUrl)
           or $this->returnServerError('Could not request Silicon: '.$feedUrl);
         $limit = 0;
diff --git a/bridges/SoundcloudBridge.php b/bridges/SoundcloudBridge.php
index 55304e5..ec04064 100644
--- a/bridges/SoundcloudBridge.php
+++ b/bridges/SoundcloudBridge.php
@@ -1,12 +1,12 @@
 <?php
 class SoundCloudBridge extends BridgeAbstract{
 
-	public $maintainer = "kranack";
-	public $name = "Soundcloud Bridge";
-	public $uri = "https://soundcloud.com/";
-	public $description = "Returns 10 newest music from user profile";
+	const MAINTAINER = "kranack";
+	const NAME = "Soundcloud Bridge";
+	const URI = "https://soundcloud.com/";
+	const DESCRIPTION = "Returns 10 newest music from user profile";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'username',
             'required'=>true
@@ -33,10 +33,10 @@ class SoundCloudBridge extends BridgeAbstract{
 		    $item['author'] = $tracks[$i]->user->username .' - '. $tracks[$i]->title;
 		    $item['title'] = $tracks[$i]->user->username .' - '. $tracks[$i]->title;
 		    $item['content'] = '<audio src="'. $tracks[$i]->uri .'/stream?client_id='. self::CLIENT_ID .'">';
-            $item['id'] = $this->uri
+            $item['id'] = self::URI
                 . urlencode($this->getInput('u')) .'/'
                 . urlencode($tracks[$i]->permalink);
-            $item['uri'] = $this->uri
+            $item['uri'] = self::URI
                 . urlencode($this->getInput('u')) .'/'
                 . urlencode($tracks[$i]->permalink);
 		    $this->items[] = $item;
@@ -44,7 +44,7 @@ class SoundCloudBridge extends BridgeAbstract{
 
     }
 	public function getName(){
-		return $this->name .' - '. $this->getInput('u');
+		return self::NAME .' - '. $this->getInput('u');
 	}
 
 	public function getCacheDuration(){
diff --git a/bridges/StripeAPIChangeLogBridge.php b/bridges/StripeAPIChangeLogBridge.php
index d93e18f..da5934d 100644
--- a/bridges/StripeAPIChangeLogBridge.php
+++ b/bridges/StripeAPIChangeLogBridge.php
@@ -1,19 +1,19 @@
 <?php
 class StripeAPIChangeLogBridge extends BridgeAbstract{
-  public $maintainer = 'Pierre Mazière';
-  public $name = 'Stripe API Changelog';
-  public $uri = 'https://stripe.com/docs/upgrades';
-  public $description = 'Returns the changes made to the stripe.com API';
+  const MAINTAINER = 'Pierre Mazière';
+  const NAME = 'Stripe API Changelog';
+  const URI = 'https://stripe.com/docs/upgrades';
+  const DESCRIPTION = 'Returns the changes made to the stripe.com API';
 
   public function collectData(){
-    $html = $this->getSimpleHTMLDOM($this->uri)
+    $html = $this->getSimpleHTMLDOM(self::URI)
       or $this->returnServerError('No results for Stripe API Changelog');
 
 
     foreach($html->find('h3') as $change){
       $item=array();
       $item['title']=trim($change->plaintext);
-      $item['uri']=$this->uri.'#'.$item['title'];
+      $item['uri']=self::URI.'#'.$item['title'];
       $item['author']='stripe';
       $item['content']=$change->nextSibling()->outertext;
       $item['timestamp']=strtotime($item['title']);
diff --git a/bridges/SuperbWallpapersBridge.php b/bridges/SuperbWallpapersBridge.php
index a42d2b9..8bfc709 100644
--- a/bridges/SuperbWallpapersBridge.php
+++ b/bridges/SuperbWallpapersBridge.php
@@ -1,12 +1,12 @@
 <?php
 class SuperbWallpapersBridge extends BridgeAbstract {
 
-	public $maintainer = "nel50n";
-	public $name = "Superb Wallpapers Bridge";
-	public $uri = "http://www.superbwallpapers.com/";
-	public $description = "Returns the latests wallpapers from SuperbWallpapers";
+	const MAINTAINER = "nel50n";
+	const NAME = "Superb Wallpapers Bridge";
+	const URI = "http://www.superbwallpapers.com/";
+	const DESCRIPTION = "Returns the latests wallpapers from SuperbWallpapers";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
       'c'=>array(
         'name'=>'category',
         'required'=>true
@@ -31,14 +31,14 @@ class SuperbWallpapersBridge extends BridgeAbstract {
         $lastpage = 1;
 
         // Get last page number
-        $link = $this->uri.'/'.$category.'/9999.html';
+        $link = self::URI.'/'.$category.'/9999.html';
         $html = $this->getSimpleHTMLDOM($link)
           or $this->returnServerError('Could not load '.$link);
 
         $lastpage = min($html->find('.paging .cpage', 0)->innertext(), ceil($max/36));
 
         for ($page = 1; $page <= $lastpage; $page++) {
-            $link = $this->uri.'/'.$category.'/'.$page.'.html';
+            $link = self::URI.'/'.$category.'/'.$page.'.html';
             $html = $this->getSimpleHTMLDOM($link)
               or $this->returnServerError('No results for this query.');
 
@@ -60,7 +60,7 @@ class SuperbWallpapersBridge extends BridgeAbstract {
     }
 
     public function getName(){
-        return $this->name .'- '.$this->getInput('c').' ['.$this->getInput('r').']';
+        return self::NAME .'- '.$this->getInput('c').' ['.$this->getInput('r').']';
     }
 
     public function getCacheDuration(){
diff --git a/bridges/T411Bridge.php b/bridges/T411Bridge.php
index 6bc2b80..d3d952f 100644
--- a/bridges/T411Bridge.php
+++ b/bridges/T411Bridge.php
@@ -1,12 +1,12 @@
 <?php
 class T411Bridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'T411 Bridge';
-    public $uri = 'https://t411.ch/';
-    public $description = 'Returns the 10 newest torrents with specified search terms <br /> Use url part after "?" mark when using their search engine.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'T411 Bridge';
+    const URI = 'https://t411.ch/';
+    const DESCRIPTION = 'Returns the 10 newest torrents with specified search terms <br /> Use url part after "?" mark when using their search engine.';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'search'=>array(
             'name'=>'Search criteria',
             'required'=>true
@@ -25,7 +25,7 @@ class T411Bridge extends BridgeAbstract {
         }
 
         //Retrieve torrent listing from search results, which does not contain torrent description
-        $url = $this->uri.'torrents/search/?'.$this->getInput('search').'&order=added&type=desc';
+        $url = self::URI.'torrents/search/?'.$this->getInput('search').'&order=added&type=desc';
         $html = $this->getSimpleHTMLDOM($url)
           or $this->returnServerError('Could not request t411: '.$url);
 
@@ -49,7 +49,7 @@ class T411Bridge extends BridgeAbstract {
            usleep(500000); //So we need to wait (500ms)
 
            //Retrieve data from RSS entry
-           $item_uri = $this->uri.'torrents/details/?id='.ExtractFromDelimiters($element->find('a.nfo', 0)->outertext, '?id=', '"');
+           $item_uri = self::URI.'torrents/details/?id='.ExtractFromDelimiters($element->find('a.nfo', 0)->outertext, '?id=', '"');
            $item_title = ExtractFromDelimiters($element->outertext, '" title="', '"');
            $item_date = strtotime($element->find('dd', 0)->plaintext);
 
diff --git a/bridges/TagBoardBridge.php b/bridges/TagBoardBridge.php
index 53b6b41..cda4925 100644
--- a/bridges/TagBoardBridge.php
+++ b/bridges/TagBoardBridge.php
@@ -1,12 +1,12 @@
 <?php
 class TagBoardBridge extends BridgeAbstract{
 
-	public $maintainer = "Pitchoule";
-	public $name = "TagBoard";
-	public $uri = "http://www.TagBoard.com/";
-	public $description = "Returns most recent results from TagBoard.";
+	const MAINTAINER = "Pitchoule";
+	const NAME = "TagBoard";
+	const URI = "http://www.TagBoard.com/";
+	const DESCRIPTION = "Returns most recent results from TagBoard.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'keyword',
             'required'=>true
diff --git a/bridges/TbibBridge.php b/bridges/TbibBridge.php
index 3d4e486..1927a67 100644
--- a/bridges/TbibBridge.php
+++ b/bridges/TbibBridge.php
@@ -1,12 +1,12 @@
 <?php
 class TbibBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Tbib";
-	public $uri = "http://tbib.org/";
-	public $description = "Returns images from given page";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Tbib";
+	const URI = "http://tbib.org/";
+	const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -16,7 +16,7 @@ class TbibBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'index.php?page=post&s=list&'
+            self::URI.'index.php?page=post&s=list&'
             .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Tbib.');
@@ -24,7 +24,7 @@ class TbibBridge extends BridgeAbstract{
 
 	foreach($html->find('div[class=content] span') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
 		$item['timestamp'] = time();
 		$thumbnailUri = $element->find('img', 0)->src;
diff --git a/bridges/TheCodingLoveBridge.php b/bridges/TheCodingLoveBridge.php
index c97f83c..2120442 100644
--- a/bridges/TheCodingLoveBridge.php
+++ b/bridges/TheCodingLoveBridge.php
@@ -1,13 +1,13 @@
 <?php
 class TheCodingLoveBridge extends BridgeAbstract{
 
-	public $maintainer = "superbaillot.net";
-	public $name = "The Coding Love";
-	public $uri = "http://thecodinglove.com/";
-	public $description = "The Coding Love";
+	const MAINTAINER = "superbaillot.net";
+	const NAME = "The Coding Love";
+	const URI = "http://thecodinglove.com/";
+	const DESCRIPTION = "The Coding Love";
 
     public function collectData(){
-      $html = $this->getSimpleHTMLDOM($this->uri)
+      $html = $this->getSimpleHTMLDOM(self::URI)
         or $this->returnServerError('Could not request The Coding Love.');
 
         foreach($html->find('div.post') as $element) {
diff --git a/bridges/TheHackerNewsBridge.php b/bridges/TheHackerNewsBridge.php
index baf5594..fe07fd3 100644
--- a/bridges/TheHackerNewsBridge.php
+++ b/bridges/TheHackerNewsBridge.php
@@ -1,10 +1,10 @@
 <?php
 class TheHackerNewsBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'The Hacker News Bridge';
-    public $uri = 'https://thehackernews.com/';
-    public $description = 'Cyber Security, Hacking, Technology News.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'The Hacker News Bridge';
+    const URI = 'https://thehackernews.com/';
+    const DESCRIPTION = 'Cyber Security, Hacking, Technology News.';
 
     public function collectData(){
 
diff --git a/bridges/TheOatMealBridge.php b/bridges/TheOatMealBridge.php
index 262e993..dc6804a 100644
--- a/bridges/TheOatMealBridge.php
+++ b/bridges/TheOatMealBridge.php
@@ -1,10 +1,10 @@
 <?php
 class TheOatmealBridge extends RssExpander{
 
-	public $maintainer = "Riduidel";
-	public $name = "The Oatmeal";
-	public $uri = "http://theoatmeal.com/";
-	public $description = "Un petit site de dessins assez rigolos";
+	const MAINTAINER = "Riduidel";
+	const NAME = "The Oatmeal";
+	const URI = "http://theoatmeal.com/";
+	const DESCRIPTION = "Un petit site de dessins assez rigolos";
 
     public function collectData(){
         $this->collectExpandableDatas('http://feeds.feedburner.com/oatmealfeed');
diff --git a/bridges/ThePirateBayBridge.php b/bridges/ThePirateBayBridge.php
index 8fddc83..3fe61de 100644
--- a/bridges/ThePirateBayBridge.php
+++ b/bridges/ThePirateBayBridge.php
@@ -1,12 +1,12 @@
 <?php
 class ThePirateBayBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "The Pirate Bay";
-	public $uri = "https://thepiratebay.org/";
-	public $description = "Returns results for the keywords. You can put several list of keywords by separating them with a semicolon (e.g. \"one show;another show\")";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "The Pirate Bay";
+	const URI = "https://thepiratebay.org/";
+	const DESCRIPTION = "Returns results for the keywords. You can put several list of keywords by separating them with a semicolon (e.g. \"one show;another show\")";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'q'=>array(
             'name'=>'keywords, separated by semicolons',
             'exampleValue'=>'first list;second list;…',
@@ -52,7 +52,7 @@ class ThePirateBayBridge extends BridgeAbstract{
 
         $keywordsList = explode(";",$this->getInput('q'));
         foreach($keywordsList as $keywords){
-          $html = $this->getSimpleHTMLDOM($this->uri.'search/'.rawurlencode($keywords).'/0/3/0')
+          $html = $this->getSimpleHTMLDOM(self::URI.'search/'.rawurlencode($keywords).'/0/3/0')
             or $this->returnServerError('Could not request TPB.');
 
             if ($html->find('table#searchResult', 0) == FALSE)
@@ -61,7 +61,7 @@ class ThePirateBayBridge extends BridgeAbstract{
 
             foreach($html->find('tr') as $element) {
                 $item = array();
-                $item['uri'] = $this->uri.$element->find('a.detLink',0)->href;
+                $item['uri'] = self::URI.$element->find('a.detLink',0)->href;
                 $item['id'] = $item['uri'];
                 $item['timestamp'] = parseDateTimestamp($element);
                 $item['title'] = $element->find('a.detLink',0)->plaintext;
diff --git a/bridges/TwitchApiBridge.php b/bridges/TwitchApiBridge.php
index becdd9f..11da945 100644
--- a/bridges/TwitchApiBridge.php
+++ b/bridges/TwitchApiBridge.php
@@ -3,12 +3,12 @@ define('TWITCH_LIMIT', 10); // The default limit
 
 class TwitchApiBridge extends BridgeAbstract{
 
-	public $maintainer = "logmanoriginal";
-	public $name = "Twitch API Bridge";
-	public $uri = "http://www.twitch.tv";
-	public $description = "Returns the newest broadcasts or highlights by channel name using the Twitch API (v3)";
+	const MAINTAINER = "logmanoriginal";
+	const NAME = "Twitch API Bridge";
+	const URI = "http://www.twitch.tv";
+	const DESCRIPTION = "Returns the newest broadcasts or highlights by channel name using the Twitch API (v3)";
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'Show Channel Videos'=>array(
             'channel'=>array(
                 'name'=>'Channel',
diff --git a/bridges/TwitterBridge.php b/bridges/TwitterBridge.php
index 6a42b54..e30f7f0 100644
--- a/bridges/TwitterBridge.php
+++ b/bridges/TwitterBridge.php
@@ -1,9 +1,9 @@
 <?php
 class TwitterBridge extends BridgeAbstract{
-    public $name='Twitter Bridge';
-    public $uri='https://twitter.com/';
-    public $description='returns tweets';
-    public $parameters=array(
+    const NAME='Twitter Bridge';
+    const URI='https://twitter.com/';
+    const DESCRIPTION='returns tweets';
+    const PARAMETERS=array(
         'global'=>array(
             'nopic'=>array(
                 'name'=>'Hide profile pictures',
@@ -51,9 +51,9 @@ class TwitterBridge extends BridgeAbstract{
     public function getURI(){
         switch($this->queriedContext){
         case 'By keyword or hashtag':
-            return $this->uri.'search?q='.urlencode($this->getInput('q')).'&f=tweets';
+            return self::URI.'search?q='.urlencode($this->getInput('q')).'&f=tweets';
         case 'By username':
-            return $this->uri.urlencode($this->getInput('u')).
+            return self::URI.urlencode($this->getInput('u')).
                 ($this->getInput('norep')?'':'/with_replies');
         }
     }
@@ -86,7 +86,7 @@ class TwitterBridge extends BridgeAbstract{
 			// get TweetID
 			$item['id'] = $tweet->getAttribute('data-tweet-id');
 			// get tweet link
-			$item['uri'] = $this->uri.$tweet->find('a.js-permalink', 0)->getAttribute('href');
+			$item['uri'] = self::URI.$tweet->find('a.js-permalink', 0)->getAttribute('href');
 			// extract tweet timestamp
 			$item['timestamp'] = $tweet->find('span.js-short-timestamp', 0)->getAttribute('data-time');
 			// generate the title
@@ -111,7 +111,7 @@ class TwitterBridge extends BridgeAbstract{
 			}
 
 			// get tweet text
-			$cleanedTweet = str_replace('href="/', 'href="'.$this->uri, $tweet->find('p.js-tweet-text', 0)->innertext);
+			$cleanedTweet = str_replace('href="/', 'href="'.self::URI, $tweet->find('p.js-tweet-text', 0)->innertext);
 
 			// Add picture to content
 			$picture_html = '';
diff --git a/bridges/UnsplashBridge.php b/bridges/UnsplashBridge.php
index 24ffefe..85ce0c2 100644
--- a/bridges/UnsplashBridge.php
+++ b/bridges/UnsplashBridge.php
@@ -1,12 +1,12 @@
 <?php
 class UnsplashBridge extends BridgeAbstract {
 
-	public $maintainer = "nel50n";
-	public $name = "Unsplash Bridge";
-	public $uri = "http://unsplash.com/";
-	public $description = "Returns the latests photos from Unsplash";
+	const MAINTAINER = "nel50n";
+	const NAME = "Unsplash Bridge";
+	const URI = "http://unsplash.com/";
+	const DESCRIPTION = "Returns the latests photos from Unsplash";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
           'm'=>array(
             'name'=>'Max number of photos',
             'type'=>'number',
@@ -32,7 +32,7 @@ class UnsplashBridge extends BridgeAbstract {
         $lastpage = 1;
 
         for ($page = 1; $page <= $lastpage; $page++) {
-            $link = $this->uri.'/grid?page='.$page;
+            $link = self::URI.'/grid?page='.$page;
             $html = $this->getSimpleHTMLDOM($link)
               or $this->returnServerError('No results for this query.');
 
diff --git a/bridges/ViadeoCompanyBridge.php b/bridges/ViadeoCompanyBridge.php
index f2d9645..75fd6aa 100644
--- a/bridges/ViadeoCompanyBridge.php
+++ b/bridges/ViadeoCompanyBridge.php
@@ -1,12 +1,12 @@
 <?php
 class ViadeoCompanyBridge extends BridgeAbstract{
 
-	public $maintainer = "regisenguehard";
-	public $name = "Viadeo Company";
-	public $uri = "https://www.viadeo.com/";
-	public $description = "Returns most recent actus from Company on Viadeo. (http://www.viadeo.com/fr/company/<strong style=\"font-weight:bold;\">apple</strong>)";
+	const MAINTAINER = "regisenguehard";
+	const NAME = "Viadeo Company";
+	const URI = "https://www.viadeo.com/";
+	const DESCRIPTION = "Returns most recent actus from Company on Viadeo. (http://www.viadeo.com/fr/company/<strong style=\"font-weight:bold;\">apple</strong>)";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'c'=>array(
             'name'=>'Company name',
             'required'=>true
@@ -15,7 +15,7 @@ class ViadeoCompanyBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = '';
-        $link = $this->uri.'fr/company/'.$this->getInput('c');
+        $link = self::URI.'fr/company/'.$this->getInput('c');
 
         $html = $this->getSimpleHTMLDOM($link)
           or $this->returnServerError('Could not request Viadeo.');
diff --git a/bridges/VineBridge.php b/bridges/VineBridge.php
index e1ae70c..6c42dd1 100644
--- a/bridges/VineBridge.php
+++ b/bridges/VineBridge.php
@@ -1,12 +1,12 @@
 <?php
 class VineBridge extends BridgeAbstract {
 
-	public $maintainer = "ckiw";
-	public $name = "Vine bridge";
-	public $uri = "http://vine.co/";
-	public $description = "Returns the latests vines from vine user page";
+	const MAINTAINER = "ckiw";
+	const NAME = "Vine bridge";
+	const URI = "http://vine.co/";
+	const DESCRIPTION = "Returns the latests vines from vine user page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'User id',
             'required'=>true
@@ -15,7 +15,7 @@ class VineBridge extends BridgeAbstract {
 
 	public function collectData(){
     $html = '';
-    $uri = $this->uri.'/u/'.$this->getInput('u').'?mode=list';
+    $uri = self::URI.'/u/'.$this->getInput('u').'?mode=list';
 
     $html = $this->getSimpleHTMLDOM($uri)
       or $this->returnServerError('No results for this query.');
diff --git a/bridges/VkBridge.php b/bridges/VkBridge.php
index f2abef6..feaafa4 100644
--- a/bridges/VkBridge.php
+++ b/bridges/VkBridge.php
@@ -2,11 +2,11 @@
 
 class VkBridge extends BridgeAbstract {
 
-    public $maintainer = "ahiles3005";
-    public $name = "VK.com";
-    public $uri = "http://vk.com/";
-    public $description = "Working with open pages";
-    public $parameters=array(
+    const MAINTAINER = "ahiles3005";
+    const NAME = "VK.com";
+    const URI = "http://vk.com/";
+    const DESCRIPTION = "Working with open pages";
+    const PARAMETERS=array(
         'Url on page group or user' => array(
             'u'=>array(
                 'name'=>'Url',
@@ -33,10 +33,10 @@ class VkBridge extends BridgeAbstract {
             //get video on post
             if (is_object($post->find('span.post_video_title_content', 0))) {
                 $titleVideo = $post->find('span.post_video_title_content', 0)->plaintext;
-                $linkToVideo = $this->uri . $post->find('a.page_post_thumb_video', 0)->getAttribute('href');
+                $linkToVideo = self::URI . $post->find('a.page_post_thumb_video', 0)->getAttribute('href');
                 $item['content'] .= "\n\r {$titleVideo}: {$linkToVideo}";
             }
-            $item['uri'] = $this->uri . $post->find('.reply_link_wrap', 0)->find('a', 0)->getAttribute('href'); // get post link
+            $item['uri'] = self::URI . $post->find('.reply_link_wrap', 0)->find('a', 0)->getAttribute('href'); // get post link
             $item['date'] = $post->find('span.rel_date', 0)->plaintext;
             $this->items[] = $item;
             // var_dump($item['date']);
diff --git a/bridges/WallpaperStopBridge.php b/bridges/WallpaperStopBridge.php
index 633642c..1cdb354 100644
--- a/bridges/WallpaperStopBridge.php
+++ b/bridges/WallpaperStopBridge.php
@@ -1,12 +1,12 @@
 <?php
 class WallpaperStopBridge extends BridgeAbstract {
 
-	public $maintainer = "nel50n";
-	public $name = "WallpaperStop Bridge";
-	public $uri = "http://www.wallpaperstop.com";
-	public $description = "Returns the latests wallpapers from WallpaperStop";
+	const MAINTAINER = "nel50n";
+	const NAME = "WallpaperStop Bridge";
+	const URI = "http://www.wallpaperstop.com";
+	const DESCRIPTION = "Returns the latests wallpapers from WallpaperStop";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'c'=>array('name'=>'Category'),
         's'=>array('name'=>'subcategory'),
         'm'=>array(
@@ -32,7 +32,7 @@ class WallpaperStopBridge extends BridgeAbstract {
        $lastpage = 1;
 
        for ($page = 1; $page <= $lastpage; $page++) {
-           $link = $this->uri.'/'.$category.'-wallpaper/'.(!empty($subcategory)?$subcategory.'-wallpaper/':'').'desktop-wallpaper-'.$page.'.html';
+           $link = self::URI.'/'.$category.'-wallpaper/'.(!empty($subcategory)?$subcategory.'-wallpaper/':'').'desktop-wallpaper-'.$page.'.html';
            $html = $this->getSimpleHTMLDOM($link)
              or $this->returnServerError('No results for this query.');
 
@@ -43,15 +43,15 @@ class WallpaperStopBridge extends BridgeAbstract {
 
            foreach($html->find('article.item') as $element) {
                $wplink = $element->getAttribute('data-permalink');
-               if (preg_match('%^'.$this->uri.'/(.+)/([^/]+)-(\d+)\.html$%', $wplink, $matches)) {
+               if (preg_match('%^'.self::URI.'/(.+)/([^/]+)-(\d+)\.html$%', $wplink, $matches)) {
                    $thumbnail = $element->find('img', 0);
 
                    $item = array();
-                   $item['uri'] = $this->uri.'/wallpapers/'.str_replace('wallpaper', 'wallpapers', $matches[1]).'/'.$matches[2].'-'.$resolution.'-'.$matches[3].'.jpg';
+                   $item['uri'] = self::URI.'/wallpapers/'.str_replace('wallpaper', 'wallpapers', $matches[1]).'/'.$matches[2].'-'.$resolution.'-'.$matches[3].'.jpg';
                    $item['id'] = $matches[3];
                    $item['timestamp'] = time();
                    $item['title'] = $thumbnail->title;
-                   $item['content'] = $item['title'].'<br><a href="'.$wplink.'"><img src="'.$this->uri.$thumbnail->src.'" /></a>';
+                   $item['content'] = $item['title'].'<br><a href="'.$wplink.'"><img src="'.self::URI.$thumbnail->src.'" /></a>';
                    $this->items[] = $item;
 
                    $num++;
diff --git a/bridges/WeLiveSecurityBridge.php b/bridges/WeLiveSecurityBridge.php
index 359a2aa..52fb74a 100644
--- a/bridges/WeLiveSecurityBridge.php
+++ b/bridges/WeLiveSecurityBridge.php
@@ -1,10 +1,10 @@
 <?php
 class WeLiveSecurityBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'We Live Security';
-    public $uri = 'http://www.welivesecurity.com/';
-    public $description = 'Returns the newest articles.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'We Live Security';
+    const URI = 'http://www.welivesecurity.com/';
+    const DESCRIPTION = 'Returns the newest articles.';
 
     public function collectData(){
 
diff --git a/bridges/WhydBridge.php b/bridges/WhydBridge.php
index bbaee2d..ec377eb 100644
--- a/bridges/WhydBridge.php
+++ b/bridges/WhydBridge.php
@@ -1,12 +1,12 @@
 <?php
 class WhydBridge extends BridgeAbstract{
 
-	public $maintainer = "kranack";
-	public $name = "Whyd Bridge";
-	public $uri = "http://www.whyd.com/";
-	public $description = "Returns 10 newest music from user profile";
+	const MAINTAINER = "kranack";
+	const NAME = "Whyd Bridge";
+	const URI = "http://www.whyd.com/";
+	const DESCRIPTION = "Returns 10 newest music from user profile";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'u'=>array(
             'name'=>'username/id',
             'required'=>true
@@ -20,17 +20,17 @@ class WhydBridge extends BridgeAbstract{
         if (strlen(preg_replace("/[^0-9a-f]/",'', $this->getInput('u'))) == 24){
             // is input the userid ?
             $html = $this->getSimpleHTMLDOM(
-                $this->uri.'u/'.preg_replace("/[^0-9a-f]/",'', $this->getInput('u'))
+                self::URI.'u/'.preg_replace("/[^0-9a-f]/",'', $this->getInput('u'))
             ) or $this->returnServerError('No results for this query.');
         } else { // input may be the username
             $html = $this->getSimpleHTMLDOM(
-                $this->uri.'search?q='.urlencode($this->getInput('u'))
+                self::URI.'search?q='.urlencode($this->getInput('u'))
             ) or $this->returnServerError('No results for this query.');
 
             for ($j = 0; $j < 5; $j++) {
                 if (strtolower($html->find('div.user', $j)->find('a',0)->plaintext) == strtolower($this->getInput('u'))) {
                     $html = $this->getSimpleHTMLDOM(
-                        $this->uri . $html->find('div.user', $j)->find('a', 0)->getAttribute('href')
+                        self::URI . $html->find('div.user', $j)->find('a', 0)->getAttribute('href')
                     ) or $this->returnServerError('No results for this query');
                     break;
                 }
@@ -44,8 +44,8 @@ class WhydBridge extends BridgeAbstract{
             $item['author'] = $track->find('h2', 0)->plaintext;
             $item['title'] = $track->find('h2', 0)->plaintext;
             $item['content'] = $track->find('a.thumb',0) . '<br/>' . $track->find('h2', 0)->plaintext;
-            $item['id'] = $this->uri . $track->find('a.no-ajaxy',0)->getAttribute('href');
-            $item['uri'] = $this->uri . $track->find('a.no-ajaxy',0)->getAttribute('href');
+            $item['id'] = self::URI . $track->find('a.no-ajaxy',0)->getAttribute('href');
+            $item['uri'] = self::URI . $track->find('a.no-ajaxy',0)->getAttribute('href');
             $this->items[] = $item;
         }
     }
diff --git a/bridges/WikipediaBridge.php b/bridges/WikipediaBridge.php
index d8c77f1..d6b59a2 100644
--- a/bridges/WikipediaBridge.php
+++ b/bridges/WikipediaBridge.php
@@ -4,12 +4,12 @@ define('WIKIPEDIA_SUBJECT_TFA', 0); // Today's featured article
 define('WIKIPEDIA_SUBJECT_DYK', 1); // Did you know...
 
 class WikipediaBridge extends HttpCachingBridgeAbstract {
-	public $maintainer = 'logmanoriginal';
-	public $name = 'Wikipedia bridge for many languages';
-	public $uri = 'https://www.wikipedia.org/';
-	public $description = 'Returns articles for a language of your choice';
+	const MAINTAINER = 'logmanoriginal';
+	const NAME = 'Wikipedia bridge for many languages';
+	const URI = 'https://www.wikipedia.org/';
+	const DESCRIPTION = 'Returns articles for a language of your choice';
 
-	public $parameters = array( array(
+	const PARAMETERS = array( array(
 		'language'=>array(
 			'name'=>'Language',
 			'type'=>'list',
diff --git a/bridges/WordPressBridge.php b/bridges/WordPressBridge.php
index 48e44fa..03af466 100644
--- a/bridges/WordPressBridge.php
+++ b/bridges/WordPressBridge.php
@@ -5,12 +5,12 @@ class WordPressBridge extends HttpCachingBridgeAbstract {
 
 	public $sitename; // Name of the site
 
-	public $maintainer = "aledeg";
-	public $name = "Wordpress Bridge";
-	public $uri = "https://wordpress.org/";
-	public $description = "Returns the 3 newest full posts of a Wordpress blog";
+	const MAINTAINER = "aledeg";
+	const NAME = "Wordpress Bridge";
+	const URI = "https://wordpress.org/";
+	const DESCRIPTION = "Returns the 3 newest full posts of a Wordpress blog";
 
-	public $parameters = array( array(
+	const PARAMETERS = array( array(
 		'url'=>array(
 			'name'=>'Blog URL',
 			'required'=>true
diff --git a/bridges/WorldOfTanksBridge.php b/bridges/WorldOfTanksBridge.php
index 8b0ec83..b723526 100644
--- a/bridges/WorldOfTanksBridge.php
+++ b/bridges/WorldOfTanksBridge.php
@@ -1,12 +1,12 @@
 <?php
 class WorldOfTanksBridge extends HttpCachingBridgeAbstract{
 
-    public $maintainer = "mitsukarenai";
-    public $name = "World of Tanks";
-    public $uri = "http://worldoftanks.eu/";
-    public $description = "News about the tank slaughter game.";
+    const MAINTAINER = "mitsukarenai";
+    const NAME = "World of Tanks";
+    const URI = "http://worldoftanks.eu/";
+    const DESCRIPTION = "News about the tank slaughter game.";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'category'=>array(
             // TODO: should be a list
             'name'=>'nom de la catégorie'
@@ -30,7 +30,7 @@ class WorldOfTanksBridge extends HttpCachingBridgeAbstract{
 
     function getURI(){
         $lang = $this->getInput('lang');
-        $uri = $this->uri.$lang.'/news/';
+        $uri = self::URI.$lang.'/news/';
         if(!empty($this->getInput('category'))) {
             $uri .= 'pc-browser/'.$this->getInput('category')."/";
         }
@@ -38,7 +38,7 @@ class WorldOfTanksBridge extends HttpCachingBridgeAbstract{
     }
 
     public function getName(){
-      return $this->title?:$this->name;
+      return $this->title?:self::NAME;
     }
 
     public function collectData(){
@@ -54,12 +54,12 @@ class WorldOfTanksBridge extends HttpCachingBridgeAbstract{
 
     private function parseLine($infoLink) {
         $item = array();
-        $item['uri'] = $this->uri.$infoLink->href;
+        $item['uri'] = self::URI.$infoLink->href;
         // now load that uri from cache
         $this->debugMessage("loading page ".$item['uri']);
         $articlePage = $this->get_cached($item['uri']);
         $content = $articlePage->find('.l-content', 0);
-        HTMLSanitizer::defaultImageSrcTo($content, $this->uri);
+        HTMLSanitizer::defaultImageSrcTo($content, self::URI);
         $item['title'] = $content->find('h1', 0)->innertext;
         $item['content'] = $content->find('.b-content', 0)->innertext;
         $item['timestamp'] = $content->find('.b-statistic_time', 0)->getAttribute("data-timestamp");
diff --git a/bridges/XbooruBridge.php b/bridges/XbooruBridge.php
index 3ac643f..a909b06 100644
--- a/bridges/XbooruBridge.php
+++ b/bridges/XbooruBridge.php
@@ -1,12 +1,12 @@
 <?php
 class XbooruBridge extends BridgeAbstract{
 
-    public $maintainer = "mitsukarenai";
-    public $name = "Xbooru";
-    public $uri = "http://xbooru.com/";
-    public $description = "Returns images from given page";
+    const MAINTAINER = "mitsukarenai";
+    const NAME = "Xbooru";
+    const URI = "http://xbooru.com/";
+    const DESCRIPTION = "Returns images from given page";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number'
@@ -16,7 +16,7 @@ class XbooruBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'index.php?page=post&s=list&'
+            self::URI.'index.php?page=post&s=list&'
             .'&pid='.($this->getInput('p')?($this->getInput('p') -1)*50:'')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Xbooru.');
@@ -24,7 +24,7 @@ class XbooruBridge extends BridgeAbstract{
 
 	foreach($html->find('div[class=content] span') as $element) {
 		$item = array();
-		$item['uri'] = $this->uri.$element->find('a', 0)->href;
+		$item['uri'] = self::URI.$element->find('a', 0)->href;
 		$item['postid'] = (int)preg_replace("/[^0-9]/",'', $element->getAttribute('id'));
 		$item['timestamp'] = time();
 		$thumbnailUri = $element->find('img', 0)->src;
diff --git a/bridges/YandereBridge.php b/bridges/YandereBridge.php
index a26f228..44a6ca1 100644
--- a/bridges/YandereBridge.php
+++ b/bridges/YandereBridge.php
@@ -1,12 +1,12 @@
 <?php
 class YandereBridge extends BridgeAbstract{
 
-	public $maintainer = "mitsukarenai";
-	public $name = "Yande.re";
-	public $uri = "https://yande.re/";
-	public $description = "Returns images from given page and tags";
+	const MAINTAINER = "mitsukarenai";
+	const NAME = "Yande.re";
+	const URI = "https://yande.re/";
+	const DESCRIPTION = "Returns images from given page and tags";
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'p'=>array(
             'name'=>'page',
             'type'=>'number',
@@ -17,7 +17,7 @@ class YandereBridge extends BridgeAbstract{
 
     public function collectData(){
         $html = $this->getSimpleHTMLDOM(
-            $this->uri.'post?'
+            self::URI.'post?'
             .'&page='.$this->getInput('p')
             .'&tags='.urlencode($this->getInput('t'))
         ) or $this->returnServerError('Could not request Yander.');
@@ -30,7 +30,7 @@ class YandereBridge extends BridgeAbstract{
         foreach($data as $datai) {
 	    $json = json_decode($datai, TRUE);
             $item = array();
-            $item['uri'] = $this->uri.'post/show/'.$json['id'];
+            $item['uri'] = self::URI.'post/show/'.$json['id'];
             $item['postid'] = $json['id'];
             $item['timestamp'] = $json['created_at'];
             $item['imageUri'] = $json['file_url'];
diff --git a/bridges/YoutubeBridge.php b/bridges/YoutubeBridge.php
index 53dd0c5..6c258f4 100644
--- a/bridges/YoutubeBridge.php
+++ b/bridges/YoutubeBridge.php
@@ -8,12 +8,12 @@
 */
 class YoutubeBridge extends BridgeAbstract {
 
-	public $name = 'YouTube Bridge';
-	public $uri = 'https://www.youtube.com/';
-	public $description = 'Returns the 10 newest videos by username/channel/playlist or search';
-	public $maintainer = 'mitsukarenai';
+	const NAME = 'YouTube Bridge';
+	const URI = 'https://www.youtube.com/';
+	const DESCRIPTION = 'Returns the 10 newest videos by username/channel/playlist or search';
+	const MAINTAINER = 'mitsukarenai';
 
-    public $parameters = array(
+    const PARAMETERS = array(
         'By username' => array(
             'u'=>array(
                 'name'=>'username',
@@ -48,7 +48,7 @@ class YoutubeBridge extends BridgeAbstract {
     );
 
 	private function ytBridgeQueryVideoInfo($vid, &$author, &$desc, &$time) {
-		$html = $this->getSimpleHTMLDOM($this->uri."watch?v=$vid");
+		$html = $this->getSimpleHTMLDOM(self::URI."watch?v=$vid");
 		$author = $html->innertext;
 		$author = substr($author, strpos($author, '"author=') + 8);
 		$author = substr($author, 0, strpos($author, '\u0026'));
@@ -62,8 +62,8 @@ class YoutubeBridge extends BridgeAbstract {
 		$item['title'] = $title;
 		$item['author'] = $author;
 		$item['timestamp'] = $time;
-		$item['uri'] = $this->uri.'watch?v='.$vid;
-		$thumbnailUri = str_replace('/www.', '/img.', $this->uri).'vi/'.$vid.'/0.jpg';
+		$item['uri'] = self::URI.'watch?v='.$vid;
+		$thumbnailUri = str_replace('/www.', '/img.', self::URI).'vi/'.$vid.'/0.jpg';
 		$item['content'] = '<a href="'.$item['uri'].'"><img src="'.$thumbnailUri.'" /></a><br />'.$desc;
 		$this->items[] = $item;
 	}
@@ -110,12 +110,12 @@ class YoutubeBridge extends BridgeAbstract {
 
 		if ($this->getInput('u')) { /* User and Channel modes */
 			$this->request = $this->getInput('u');
-			$url_feed = $this->uri.'feeds/videos.xml?user='.urlencode($this->request);
-			$url_listing = $this->uri.'user/'.urlencode($this->request).'/videos';
+			$url_feed = self::URI.'feeds/videos.xml?user='.urlencode($this->request);
+			$url_listing = self::URI.'user/'.urlencode($this->request).'/videos';
 		} else if ($this->getInput('c')) {
 			$this->request = $this->getInput('c');
-			$url_feed = $this->uri.'feeds/videos.xml?channel_id='.urlencode($this->request);
-			$url_listing = $this->uri.'channel/'.urlencode($this->request).'/videos';
+			$url_feed = self::URI.'feeds/videos.xml?channel_id='.urlencode($this->request);
+			$url_listing = self::URI.'channel/'.urlencode($this->request).'/videos';
 		}
 		if (!empty($url_feed) && !empty($url_listing)) {
 			if ($xml = $this->getSimpleHTMLDOM($url_feed)) {
@@ -127,7 +127,7 @@ class YoutubeBridge extends BridgeAbstract {
 
 		else if ($this->getInput('p')) { /* playlist mode */
 			$this->request = $this->getInput('p');
-			$url_listing = $this->uri.'playlist?list='.urlencode($this->request);
+			$url_listing = self::URI.'playlist?list='.urlencode($this->request);
 			$html = $this->getSimpleHTMLDOM($url_listing) or $this->returnServerError("Could not request YouTube. Tried:\n - $url_listing");
 			$this->ytBridgeParseHtmlListing($html, 'tr.pl-video', '.pl-video-title a');
 			$this->request = 'Playlist: '.str_replace(' - YouTube', '', $html->find('title', 0)->plaintext);
@@ -135,7 +135,7 @@ class YoutubeBridge extends BridgeAbstract {
 
 		else if ($this->getInput('s')) { /* search mode */
 			$this->request = $this->getInput('s'); $page = 1; if ($this->getInput('pa')) $page = (int)preg_replace("/[^0-9]/",'', $this->getInput('pa'));
-			$url_listing = $this->uri.'results?search_query='.urlencode($this->request).'&page='.$page.'&filters=video&search_sort=video_date_uploaded';
+			$url_listing = self::URI.'results?search_query='.urlencode($this->request).'&page='.$page.'&filters=video&search_sort=video_date_uploaded';
 			$html = $this->getSimpleHTMLDOM($url_listing) or $this->returnServerError("Could not request YouTube. Tried:\n - $url_listing");
 			$this->ytBridgeParseHtmlListing($html, 'div.yt-lockup', 'h3');
 			$this->request = 'Search: '.str_replace(' - YouTube', '', $html->find('title', 0)->plaintext);
diff --git a/bridges/ZDNetBridge.php b/bridges/ZDNetBridge.php
index 03f63ba..af0eb87 100644
--- a/bridges/ZDNetBridge.php
+++ b/bridges/ZDNetBridge.php
@@ -1,13 +1,13 @@
 <?php
 class ZDNetBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'ZDNet Bridge';
-    public $uri = 'http://www.zdnet.com/';
-    public $description = 'Technology News, Analysis, Comments and Product Reviews for IT Professionals.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'ZDNet Bridge';
+    const URI = 'http://www.zdnet.com/';
+    const DESCRIPTION = 'Technology News, Analysis, Comments and Product Reviews for IT Professionals.';
 
     //http://www.zdnet.com/zdnet.opml
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'feed'=>array(
             'name'=>'Feed',
             'type'=>'list',
@@ -207,7 +207,7 @@ class ZDNetBridge extends BridgeAbstract {
             return $string;
         }
 
-        $baseUri = $this->uri;
+        $baseUri = self::URI;
         $feed = $this->getInput('feed');
         if (strpos($feed, 'downloads!') !== false) {
             $feed = str_replace('downloads!', '', $feed);
diff --git a/bridges/ZatazBridge.php b/bridges/ZatazBridge.php
index e1a87f5..b805d60 100644
--- a/bridges/ZatazBridge.php
+++ b/bridges/ZatazBridge.php
@@ -1,13 +1,13 @@
 <?php
 class ZatazBridge extends BridgeAbstract {
 
-	public $maintainer = "aledeg";
-	public $name = 'Zataz Magazine';
-	public $uri = 'http://www.zataz.com';
-	public $description = "ZATAZ Magazine - S'informer, c'est déjà se sécuriser";
+	const MAINTAINER = "aledeg";
+	const NAME = 'Zataz Magazine';
+	const URI = 'http://www.zataz.com';
+	const DESCRIPTION = "ZATAZ Magazine - S'informer, c'est déjà se sécuriser";
 
 	public function collectData(){
-		$html = $this->getSimpleHTMLDOM($this->uri) or $this->returnServerError('Could not request ' . $this->uri);
+		$html = $this->getSimpleHTMLDOM(self::URI) or $this->returnServerError('Could not request ' . self::URI);
 
 		$recent_posts = $html->find('#recent-posts-3', 0)->find('ul', 0)->find('li');
 		foreach ($recent_posts as $article) {
diff --git a/bridges/ZoneTelechargementBridge.php b/bridges/ZoneTelechargementBridge.php
index 4a0bf03..86b3ded 100644
--- a/bridges/ZoneTelechargementBridge.php
+++ b/bridges/ZoneTelechargementBridge.php
@@ -1,12 +1,12 @@
 <?php
 class ZoneTelechargementBridge extends BridgeAbstract {
 
-    public $maintainer = 'ORelio';
-    public $name = 'Zone Telechargement Bridge';
-    public $uri = 'https://www.zone-telechargement.com/';
-    public $description = 'RSS proxy returning the newest releases.<br />You may specify a category found in RSS URLs, else main feed is selected.';
+    const MAINTAINER = 'ORelio';
+    const NAME = 'Zone Telechargement Bridge';
+    const URI = 'https://www.zone-telechargement.com/';
+    const DESCRIPTION = 'RSS proxy returning the newest releases.<br />You may specify a category found in RSS URLs, else main feed is selected.';
 
-    public $parameters = array( array(
+    const PARAMETERS = array( array(
         'category'=>array('name'=>'Category')
     ));