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- <?php
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2004 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 3.0 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/3_0.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Authors: Aidan Lister <aidan@php.net> |
- // +----------------------------------------------------------------------+
- //
- // $Id: array_intersect_key.php,v 1.4 2005/01/26 04:55:13 aidan Exp $
-
-
- /**
- * Replace array_intersect_key()
- *
- * @category PHP
- * @package PHP_Compat
- * @link http://php.net/function.array_intersect_key
- * @author Tom Buskens <ortega@php.net>
- * @version $Revision: 1.4 $
- * @since PHP 5.0.2
- * @require PHP 4.0.0 (user_error)
- */
- if (!function_exists('array_intersect_key')) {
- function array_intersect_key()
- {
- $args = func_get_args();
- if (count($args) < 2) {
- user_error('Wrong parameter count for array_intersect_key()', E_USER_WARNING);
- return;
- }
-
- // Check arrays
- $array_count = count($args);
- for ($i = 0; $i !== $array_count; $i++) {
- if (!is_array($args[$i])) {
- user_error('array_intersect_key() Argument #' .
- ($i + 1) . ' is not an array', E_USER_WARNING);
- return;
- }
- }
-
- // Compare entries
- $result = array();
- foreach ($args[0] as $key1 => $value1) {
- for ($i = 1; $i !== $array_count; $i++) {
- foreach ($args[$i] as $key2 => $value2) {
- if ((string) $key1 === (string) $key2) {
- $result[$key1] = $value1;
- }
- }
- }
- }
-
- return $result;
- }
- }
-
- ?>