library/Zend/Validate/Hex.php

   1 <?php
   2
   3 /**
   4  * Zend Framework
   5  *
   6  * LICENSE
   7  *
   8  * This source file is subject to the new BSD license that is bundled
   9  * with this package in the file LICENSE.txt.
  10  * It is also available through the world-wide-web at this URL:
  11  * http://framework.zend.com/license/new-bsd
  12  * If you did not receive a copy of the license and are unable to
  13  * obtain it through the world-wide-web, please send an email
  14  * to license@zend.com so we can send you a copy immediately.
  15  *
  16  * @category   Zend
  17  * @package    Zend_Validate
  18  * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  19  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  20  * @version    $Id: Hex.php 17470 2009-08-08 22:27:09Z thomas $
  21  */
  22
  23
  24 /**
  25  * @see Zend_Validate_Abstract
  26  */
  27 require_once 'Zend/Validate/Abstract.php';
  28
  29
  30 /**
  31  * @category   Zend
  32  * @package    Zend_Validate
  33  * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  34  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  35  */
  36 class Zend_Validate_Hex extends Zend_Validate_Abstract
  37 {
  38     const INVALID = 'hexInvalid';
  39     const NOT_HEX = 'notHex';
  40
  41     /**
  42      * Validation failure message template definitions
  43      *
  44      * @var array
  45      */
  46     protected $_messageTemplates = array(
  47         self::INVALID => "Invalid type given, value should be a string",
  48         self::NOT_HEX => "'%value%' has not only hexadecimal digit characters"
  49     );
  50
  51     /**
  52      * Defined by Zend_Validate_Interface
  53      *
  54      * Returns true if and only if $value contains only hexadecimal digit characters
  55      *
  56      * @param  string $value
  57      * @return boolean
  58      */
  59     public function isValid($value)
  60     {
  61         if (!is_string($value) && !is_int($value)) {
  62             $this->_error(self::INVALID);
  63             return false;
  64         }
  65
  66         $this->_setValue($value);
  67         if (!ctype_xdigit((string) $value)) {
  68             $this->_error(self::NOT_HEX);
  69             return false;
  70         }
  71
  72         return true;
  73     }
  74
  75 }