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<?php
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// +----------------------------------------------------------------------+
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// | PHP Version 4                                                        |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2004 The PHP Group                                |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 3.0 of the PHP license,       |
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// | that is bundled with this package in the file LICENSE, and is        |
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// | available at through the world-wide-web at                           |
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// | http://www.php.net/license/3_0.txt.                                  |
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// | If you did not receive a copy of the PHP license and are unable to   |
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// | obtain it through the world-wide-web, please send a note to          |
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// | license@php.net so we can mail you a copy immediately.               |
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// +----------------------------------------------------------------------+
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// | Authors: Aidan Lister <aidan@php.net>                                |
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// +----------------------------------------------------------------------+
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//
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// $Id: array_uintersect_uassoc.php,v 1.12 2005/01/26 04:55:13 aidan Exp $
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/**
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 * Replace array_uintersect_uassoc()
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 *
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 * @category    PHP
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 * @package     PHP_Compat
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 * @link        http://php.net/function.array_uintersect_uassoc
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 * @author      Aidan Lister <aidan@php.net>
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 * @version     $Revision: 1.12 $
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 * @since       PHP 5
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 * @require     PHP 4.0.6 (is_callable)
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 */
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if (!function_exists('array_uintersect_uassoc')) {
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    function array_uintersect_uassoc()
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    {
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        $args = func_get_args();
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        if (count($args) < 4) {
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            user_error('Wrong parameter count for array_uintersect_uassoc()',
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                E_USER_WARNING);
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            return;
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        }
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        // Get key_compare_func
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        $key_compare_func = array_pop($args);
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        if (!is_callable($key_compare_func)) {
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            if (is_array($key_compare_func)) {
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                $key_compare_func = $key_compare_func[0] . '::' . $key_compare_func[1];
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            }
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            user_error('array_uintersect_uassoc() Not a valid callback ' .
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                $key_compare_func, E_USER_WARNING);
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            return;
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        }
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        // Get data_compare_func
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        $data_compare_func = array_pop($args);
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        if (!is_callable($data_compare_func)) {
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            if (is_array($data_compare_func)) {
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                $data_compare_func = $data_compare_func[0] . '::' . $data_compare_func[1];
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            }
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            user_error('array_uintersect_uassoc() Not a valid callback '
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            . $data_compare_func, E_USER_WARNING);
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            return;
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        }
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        // Check arrays
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        $count = count($args);
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        for ($i = 0; $i !== $count; $i++) {
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            if (!is_array($args[$i])) {
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                user_error('array_uintersect_uassoc() Argument #' .
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                    ($i + 1) . ' is not an array', E_USER_WARNING);
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                return;
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            }
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        }
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        // Traverse values of the first array
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        $intersect = array ();
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        foreach ($args[0] as $key => $value) {
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            // Check against each array
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            for ($i = 1; $i < $count; $i++) {
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                // Traverse each element in current array
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                foreach ($args[$i] as $ckey => $cvalue) {
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                    // Compare key and value
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                    if (call_user_func($key_compare_func, $key, $ckey) === 0 &&
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                        call_user_func($data_compare_func, $value, $cvalue) === 0)
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                    {
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                        $intersect[$key] = $value;
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                        continue;
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                    }
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                }
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            }
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        }
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        return $intersect;
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    }
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}
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?>