source: branches/version-2_5-dev/data/module/Compat/Compat/Function/array_combine.php @ 20116

Revision 20116, 2.6 KB checked in by nanasess, 13 years ago (diff)
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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// $Id$
19
20
21/**
22 * Replace array_combine()
23 *
24 * @category    PHP
25 * @package     PHP_Compat
26 * @link        http://php.net/function.array_combine
27 * @author      Aidan Lister <aidan@php.net>
28 * @version     $Revision: 1.21 $
29 * @since       PHP 5
30 * @require     PHP 4.0.0 (user_error)
31 */
32if (!function_exists('array_combine')) {
33    function array_combine($keys, $values)
34    {
35        if (!is_array($keys)) {
36            user_error('array_combine() expects parameter 1 to be array, ' .
37                gettype($keys) . ' given', E_USER_WARNING);
38            return;
39        }
40
41        if (!is_array($values)) {
42            user_error('array_combine() expects parameter 2 to be array, ' .
43                gettype($values) . ' given', E_USER_WARNING);
44            return;
45        }
46
47        $key_count = count($keys);
48        $value_count = count($values);
49        if ($key_count !== $value_count) {
50            user_error('array_combine() Both parameters should have equal number of elements', E_USER_WARNING);
51            return false;
52        }
53
54        if ($key_count === 0 || $value_count === 0) {
55            user_error('array_combine() Both parameters should have number of elements at least 0', E_USER_WARNING);
56            return false;
57        }
58
59        $keys    = array_values($keys);
60        $values  = array_values($values);
61
62        $combined = array();
63        for ($i = 0; $i < $key_count; $i++) {
64            $combined[$keys[$i]] = $values[$i];
65        }
66
67        return $combined;
68    }
69}
70
71?>
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