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<?php |
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<?php |
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// +----------------------------------------------------------------------+ |
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// +----------------------------------------------------------------------+ |
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// | PHP Version 4 | |
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// | PHP Version 4 | |
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// +----------------------------------------------------------------------+ |
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// +----------------------------------------------------------------------+ |
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// | Copyright (c) 1997-2004 The PHP Group | |
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// | Copyright (c) 1997-2004 The PHP Group | |
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// +----------------------------------------------------------------------+ |
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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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// | 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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// | 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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// | available at through the world-wide-web at | |
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// | http://www.php.net/license/3_0.txt. | |
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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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// | 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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// | 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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// | license@php.net so we can mail you a copy immediately. | |
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// +----------------------------------------------------------------------+ |
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// +----------------------------------------------------------------------+ |
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// | Authors: Aidan Lister <aidan@php.net> | |
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// | Authors: Aidan Lister <aidan@php.net> | |
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// +----------------------------------------------------------------------+ |
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// +----------------------------------------------------------------------+ |
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// |
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// |
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// $Id: str_shuffle.php,v 1.6 2005/08/14 03:24:16 aidan Exp $ |
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// $Id: str_shuffle.php,v 1.6 2005/08/14 03:24:16 aidan Exp $ |
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/** |
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/** |
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* Replace str_shuffle() |
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* Replace str_shuffle() |
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* |
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* |
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* @category PHP |
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* @category PHP |
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* @package PHP_Compat |
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* @package PHP_Compat |
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* @link http://php.net/function.str_shuffle |
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* @link http://php.net/function.str_shuffle |
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* @author Aidan Lister <aidan@php.net> |
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* @author Aidan Lister <aidan@php.net> |
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* @version $Revision: 1.6 $ |
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* @version $Revision: 1.6 $ |
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* @since PHP 4.3.0 |
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* @since PHP 4.3.0 |
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* @require PHP 4.0.0 (user_error) |
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* @require PHP 4.0.0 (user_error) |
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*/ |
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*/ |
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if (!function_exists('str_shuffle')) { |
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if (!function_exists('str_shuffle')) { |
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function str_shuffle($str) |
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function str_shuffle($str) |
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{ |
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{ |
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// Init |
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// Init |
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$str = (string) $str; |
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$str = (string) $str; |
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|
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// Seed |
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// Seed |
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list($usec, $sec) = explode(' ', microtime()); |
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list($usec, $sec) = explode(' ', microtime()); |
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$seed = (float) $sec + ((float) $usec * 100000); |
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$seed = (float) $sec + ((float) $usec * 100000); |
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mt_srand($seed); |
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mt_srand($seed); |
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// Shuffle |
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// Shuffle |
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for ($new = '', $len = strlen($str); $len > 0; $str{$p} = $str{$len}) { |
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for ($new = '', $len = strlen($str); $len > 0; $str{$p} = $str{$len}) { |
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$new .= $str{$p = mt_rand(0, --$len)}; |
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$new .= $str{$p = mt_rand(0, --$len)}; |
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} |
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} |
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return $new; |
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return $new; |
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} |
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} |
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} |
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} |
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?> |
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?> |
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