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139 root 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: str_shuffle.php,v 1.6 2005/08/14 03:24:16 aidan Exp $
19  
20  
21 /**
22 * Replace str_shuffle()
23 *
24 * @category PHP
25 * @package PHP_Compat
26 * @link http://php.net/function.str_shuffle
27 * @author Aidan Lister <aidan@php.net>
28 * @version $Revision: 1.6 $
29 * @since PHP 4.3.0
30 * @require PHP 4.0.0 (user_error)
31 */
32 if (!function_exists('str_shuffle')) {
33 function str_shuffle($str)
34 {
35 // Init
36 $str = (string) $str;
37  
38 // Seed
39 list($usec, $sec) = explode(' ', microtime());
40 $seed = (float) $sec + ((float) $usec * 100000);
41 mt_srand($seed);
42  
43 // Shuffle
44 for ($new = '', $len = strlen($str); $len > 0; $str{$p} = $str{$len}) {
45 $new .= $str{$p = mt_rand(0, --$len)};
46 }
47  
48 return $new;
49 }
50 }
51  
130 kaklik 52 ?>