87 lines
No EOL
2.7 KiB
PHP
87 lines
No EOL
2.7 KiB
PHP
<?php
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/**
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* Array manipulation library.
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*
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* @author Time.ly Network, Inc.
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* @since 2.0
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* @package Ai1EC
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* @subpackage Ai1EC.Primitive
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*/
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class Ai1ec_Primitive_Array {
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/**
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* Optionally explode given value.
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*
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* Perform explosion only if given value is not an array.
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*
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* @param char $separator Entities separator value.
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* @param string|array $input Allegedly string, but might be an array.
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*
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* @return array List of values.
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*/
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static public function opt_explode( $separator, $input ) {
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if ( ! is_array( $input ) ) {
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$input = explode( $separator, $input );
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}
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return $input;
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}
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/**
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* Merge two arrays recursively maintaining key type as long as possible
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*
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* Method similar to array_merge_recursive, although it does not cast non
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* array value to array, unless one of arguments is an array.
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* Merge product is produced only on two arrays, not unlimited many.
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*
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* @param array $arr1 First (base) array to merge
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* @param array $arr2 Second (ammendment) array to merge
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*
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* @return array Merge product
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*/
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static public function deep_merge( array $arr1, array $arr2 ) {
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$result = array();
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foreach ( $arr1 as $key => $value ) {
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self::_merge_value( $result, $key, $value );
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if ( isset( $arr2[$key] ) ) {
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if ( is_array( $result[$key] ) || is_array( $arr2[$key] ) ) {
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$result[$key] = (array)$result[$key];
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$arr2[$key] = (array)$arr2[$key];
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$result[$key] = self::deep_merge(
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$result[$key],
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$arr2[$key]
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);
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} else {
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self::_merge_value( $result, $key, $arr2[$key] );
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}
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}
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unset( $arr2[$key] );
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}
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foreach ( $arr2 as $key => $value ) {
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self::_merge_value( $result, $key, $value );
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}
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return $result;
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}
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/**
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* Inject value into merge array
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*
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* If key is numeric (appears to be integer) - value is pushed
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* into array, otherwise added under given key.
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*
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* @param array $result Reference to merge array
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* @param string|int $key Key to use for merge
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* @param mixed $value Value to add under key
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*
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* @return bool Success If it is not true - something wrong happened
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*/
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static protected function _merge_value( array& $result, $key, $value ) {
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if ( is_int( $key ) || ctype_digit( $key ) ) {
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$result[] = $value;
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return true;
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}
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$result[$key] = $value;
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return true;
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}
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} |