41 lines
1.2 KiB
PHP
41 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) 2003-2009 the SysCP Team (see authors).
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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 Florian Lippert <flo@syscp.org> (2003-2009)
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* @author Froxlor team <team@froxlor.org> (2010-)
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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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* Returns if an username is in correct format or not.
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*
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* @param string The username to check
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* @return bool Correct or not
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* @author Michael Duergner <michael@duergner.com>
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*
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*/
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function validateUsername($username, $unix_names = 1, $mysql_max = '') {
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if ($unix_names == 0) {
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if (strpos($username, '--') === false) {
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return (preg_match('/^[a-z][a-z0-9\-_]{0,' . (int)($mysql_max - 1) . '}[a-z0-9]{1}$/Di', $username) != false);
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} else {
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return false;
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}
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} else {
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return (preg_match('/^[a-z][a-z0-9]{0,' . $mysql_max . '}$/Di', $username) != false);
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}
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}
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