mysql.php 1.7 KB

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  1. <?php
  2. class Db_Mysql implements IDb {
  3. private $link;
  4. private $last_error;
  5. function connect($host, $user, $pass, $db, $port) {
  6. $this->link = mysql_connect($host, $user, $pass);
  7. if ($this->link) {
  8. $result = mysql_select_db($db, $this->link);
  9. if (!$result) {
  10. die("Can't select DB: " . mysql_error($this->link));
  11. }
  12. $this->init();
  13. return $this->link;
  14. } else {
  15. die("Unable to connect to database (as $user to $host, database $db): " . mysql_error());
  16. }
  17. }
  18. function escape_string($s, $strip_tags = true) {
  19. if ($strip_tags) $s = strip_tags($s);
  20. return mysql_real_escape_string($s, $this->link);
  21. }
  22. function query($query, $die_on_error = true) {
  23. $result = @mysql_query($query, $this->link);
  24. if (!$result) {
  25. $this->last_error = @mysql_error($this->link);
  26. @mysql_query("ROLLBACK", $this->link);
  27. user_error("Query $query failed: " . ($this->link ? $this->last_error : "No connection"),
  28. $die_on_error ? E_USER_ERROR : E_USER_WARNING);
  29. }
  30. return $result;
  31. }
  32. function fetch_assoc($result) {
  33. return mysql_fetch_assoc($result);
  34. }
  35. function num_rows($result) {
  36. return mysql_num_rows($result);
  37. }
  38. function fetch_result($result, $row, $param) {
  39. return mysql_result($result, $row, $param);
  40. }
  41. function close() {
  42. return mysql_close($this->link);
  43. }
  44. function affected_rows($result) {
  45. return mysql_affected_rows($this->link);
  46. }
  47. function last_error() {
  48. return mysql_error();
  49. }
  50. function last_query_error() {
  51. return $this->last_error;
  52. }
  53. function init() {
  54. $this->query("SET time_zone = '+0:0'");
  55. if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
  56. $this->query("SET NAMES " . MYSQL_CHARSET);
  57. }
  58. return true;
  59. }
  60. }
  61. ?>