[Summary view]

   1  <?php
   2  /* vim: set expandtab tabstop=4 shiftwidth=4: */
   3  // +----------------------------------------------------------------------+
   4  // | PHP version 4.0                                                      |
   5  // +----------------------------------------------------------------------+
   6  // | Copyright (c) 1997-2003 The PHP Group                                |
   7  // +----------------------------------------------------------------------+
   8  // | This source file is subject to version 2.0 of the PHP license,       |
   9  // | that is bundled with this package in the file LICENSE, and is        |
  10  // | available at through the world-wide-web at                           |
  11  // | http://www.php.net/license/2_02.txt.                                 |
  12  // | If you did not receive a copy of the PHP license and are unable to   |
  13  // | obtain it through the world-wide-web, please send a note to          |
  14  // | license@php.net so we can mail you a copy immediately.               |
  15  // +----------------------------------------------------------------------+
  16  // | Authors: Bertrand Mansion <bmansion@mamasam.com>                     |
  17  // +----------------------------------------------------------------------+
  18  //
  19  // $Id$
  20  
  21  require_once('HTML/QuickForm/Rule.php');
  22  
  23  /**
  24  * Email validation rule
  25  * @version     1.0
  26  */
  27  class HTML_QuickForm_Rule_Email extends HTML_QuickForm_Rule
  28  {
  29      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\-]+))$/';
  30  
  31      /**
  32       * Validates an email address
  33       *
  34       * @param     string    $email          Email address
  35       * @param     boolean   $checkDomain    True if dns check should be performed
  36       * @access    public
  37       * @return    boolean   true if email is valid
  38       */
  39      function validate($email, $checkDomain = false)
  40      {
  41          if (preg_match($this->regex, $email)) {
  42              if ($checkDomain && function_exists('checkdnsrr')) {
  43                  $tokens = explode('@', $email);
  44                  if (checkdnsrr($tokens[1], 'MX') || checkdnsrr($tokens[1], 'A')) {
  45                      return true;
  46                  }
  47                  return false;
  48              }
  49              return true;
  50          }
  51          return false;
  52      } // end func validate
  53  
  54  
  55      function getValidationScript($options = null)
  56      {
  57          return array("  var regex = " . $this->regex . ";\n", "{jsVar} != '' && !regex.test({jsVar})");
  58      } // end func getValidationScript
  59  
  60  } // end class HTML_QuickForm_Rule_Email
  61  ?>