Location: PHPKode > projects > Content*Builder > cb_pear/HTML/QuickForm/Rule/Email.php
<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP version 4.0                                                      |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group                                |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 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/2_02.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          |
// | hide@address.com so we can mail you a copy immediately.               |
// +----------------------------------------------------------------------+
// | Authors: Bertrand Mansion <hide@address.com>                     |
// +----------------------------------------------------------------------+
//
// $Id: Email.php,v 1.1 2004/02/12 13:48:57 dekamerone Exp $

require_once('HTML/QuickForm/Rule.php');

/**
* Email validation rule
* @version     1.0
*/
class HTML_QuickForm_Rule_Email extends HTML_QuickForm_Rule
{
    var $regex = '/^((\"[^\"\f\n\r\t\v\b]+\")|([\w\!\#\$\%\&\'\*\+\-\~\/\^\`\|\{\}]+(\.[\w\!\#\$\%\&\'\*\+\-\~\/\^\`\|\{\}]+)*))@((\[(((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9])))\])|(((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9])))|((([A-Za-z0-9\-])+\.)+[A-Za-z\-]+))$/';

    /**
     * Validates an email address
     *
     * @param     string    $email          Email address
     * @param     boolean   $checkDomain    True if dns check should be performed
     * @access    public
     * @return    boolean   true if email is valid
     */
    function validate($email, $checkDomain = false)
    {
        if (preg_match($this->regex, $email)) {
            if ($checkDomain && function_exists('checkdnsrr')) {
                $tokens = explode('@', $email);
                if (checkdnsrr($tokens[1], 'MX') || checkdnsrr($tokens[1], 'A')) {
                    return true;
                }
                return false;
            }
            return true;
        }
        return false;
    } // end func validate


    function getValidationScript($options = null)
    {
        return array("  var regex = " . $this->regex . ";\n", "{jsVar} != '' && !regex.test({jsVar})");
    } // end func getValidationScript

} // end class HTML_QuickForm_Rule_Email
?>
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