/php/pear/PHP/Compat/Function/array_udiff_uassoc.php

 1<?php
 2// +----------------------------------------------------------------------+
 3// | PHP Version 4                                                        |
 4// +----------------------------------------------------------------------+
 5// | Copyright (c) 1997-2004 The PHP Group                                |
 6// +----------------------------------------------------------------------+
 7// | This source file is subject to version 3.0 of the PHP license,       |
 8// | that is bundled with this package in the file LICENSE, and is        |
 9// | available at through the world-wide-web at                           |
10// | http://www.php.net/license/3_0.txt.                                  |
11// | If you did not receive a copy of the PHP license and are unable to   |
12// | obtain it through the world-wide-web, please send a note to          |
13// | license@php.net so we can mail you a copy immediately.               |
14// +----------------------------------------------------------------------+
15// | Authors: Aidan Lister <aidan@php.net>                                |
16// +----------------------------------------------------------------------+
17//
18// $Id: array_udiff_uassoc.php,v 1.8 2005/01/26 04:55:13 aidan Exp $
19
20
21/**
22 * Replace array_udiff_uassoc()
23 *
24 * @category    PHP
25 * @package     PHP_Compat
26 * @link        http://php.net/function.array_udiff_uassoc
27 * @author      Aidan Lister <aidan@php.net>
28 * @version     $Revision: 1.8 $
29 * @since       PHP 5
30 * @require     PHP 4.0.6 (is_callable)
31 */
32if (!function_exists('array_udiff_uassoc')) {
33    function array_udiff_uassoc()
34    {
35        $args = func_get_args();
36        if (count($args) < 3) {
37            user_error('Wrong parameter count for array_udiff_uassoc()', E_USER_WARNING);
38            return;
39        }
40
41        // Get compare function
42        $compare_func = array_pop($args);
43        if (!is_callable($compare_func)) {
44            if (is_array($compare_func)) {
45                $compare_func = $compare_func[0] . '::' . $compare_func[1];
46            }
47            user_error('array_udiff_uassoc() Not a valid callback ' . $compare_func, E_USER_WARNING);
48            return;
49        }
50
51        // Check arrays
52        $count = count($args);
53        for ($i = 0; $i < $count; $i++) {
54            if (!is_array($args[$i])) {
55                user_error('array_udiff_uassoc() Argument #' .
56                    ($i + 1) . ' is not an array', E_USER_WARNING);
57                return;
58            }
59        }
60
61        // Traverse values of the first array
62        $diff = array ();
63        foreach ($args[0] as $key => $value) {
64            // Check all arrays
65            for ($i = 1; $i < $count; $i++) {
66                if (!array_key_exists($key, $args[$i])) {
67                    continue;
68                }
69                $result = call_user_func($compare_func, $value, $args[$i][$key]);
70                if ($result === 0) {
71                    continue 2;
72                }
73            }
74
75            $diff[$key] = $value;
76        }
77
78        return $diff;
79    }
80}
81
82?>