0,0 → 1,52 |
<?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: str_shuffle.php,v 1.6 2005/08/14 03:24:16 aidan Exp $ |
|
|
/** |
* Replace str_shuffle() |
* |
* @category PHP |
* @package PHP_Compat |
* @link http://php.net/function.str_shuffle |
* @author Aidan Lister <aidan@php.net> |
* @version $Revision: 1.6 $ |
* @since PHP 4.3.0 |
* @require PHP 4.0.0 (user_error) |
*/ |
if (!function_exists('str_shuffle')) { |
function str_shuffle($str) |
{ |
// Init |
$str = (string) $str; |
|
// Seed |
list($usec, $sec) = explode(' ', microtime()); |
$seed = (float) $sec + ((float) $usec * 100000); |
mt_srand($seed); |
|
// Shuffle |
for ($new = '', $len = strlen($str); $len > 0; $str{$p} = $str{$len}) { |
$new .= $str{$p = mt_rand(0, --$len)}; |
} |
|
return $new; |
} |
} |
|
?> |