45 lines
1.2 KiB
PHP
45 lines
1.2 KiB
PHP
<?php
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/**
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* This file is part of the Froxlor project.
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* Copyright (c) 2010 the Froxlor Team (see authors).
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*
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* For the full copyright and license information, please view the COPYING
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* file that was distributed with this source code. You can also view the
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* COPYING file online at http://files.froxlor.org/misc/COPYING.txt
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*
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* @copyright (c) the authors
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* @author Froxlor team <team@froxlor.org> (2016-)
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* @license GPLv2 http://files.froxlor.org/misc/COPYING.txt
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* @package Functions
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*
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*/
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/**
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* Function randomStr
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*
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* generate a pseudo-random string of bytes
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*
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* @param int $length
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*
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* @return string
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*/
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function randomStr($length)
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{
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if (version_compare(PHP_VERSION, '7.0.0') >= 0) {
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return random_bytes($length);
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} elseif (function_exists('openssl_random_pseudo_bytes')) {
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return openssl_random_pseudo_bytes($length);
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} else {
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$pr_bits = '';
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$fp = @fopen('/dev/urandom', 'rb');
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if ($fp !== false) {
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$pr_bits .= @fread($fp, $length);
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@fclose($fp);
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} else {
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$pr_bits = substr(rand(time(), getrandmax()).rand(time(), getrandmax()), 0, $length);
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}
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return $pr_bits;
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}
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}
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