library/Zend/Validate/Hex.php

   1 <?php
   2 /**
   3  * Zend Framework
   4  *
   5  * LICENSE
   6  *
   7  * This source file is subject to the new BSD license that is bundled
   8  * with this package in the file LICENSE.txt.
   9  * It is also available through the world-wide-web at this URL:
  10  * http://framework.zend.com/license/new-bsd
  11  * If you did not receive a copy of the license and are unable to
  12  * obtain it through the world-wide-web, please send an email
  13  * to license@zend.com so we can send you a copy immediately.
  14  *
  15  * @category   Zend
  16  * @package    Zend_Validate
  17  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  18  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  19  * @version    $Id$
  20  */
  21
  22 /**
  23  * @see Zend_Validate_Abstract
  24  */
  25 require_once 'Zend/Validate/Abstract.php';
  26
  27 /**
  28  * @category   Zend
  29  * @package    Zend_Validate
  30  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  31  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  32  */
  33 class Zend_Validate_Hex extends Zend_Validate_Abstract
  34 {
  35     const INVALID = 'hexInvalid';
  36     const NOT_HEX = 'notHex';
  37
  38     /**
  39      * Validation failure message template definitions
  40      *
  41      * @var array
  42      */
  43     protected $_messageTemplates = array(
  44         self::INVALID => "Invalid type given, value should be a string",
  45         self::NOT_HEX => "'%value%' has not only hexadecimal digit characters",
  46     );
  47
  48     /**
  49      * Defined by Zend_Validate_Interface
  50      *
  51      * Returns true if and only if $value contains only hexadecimal digit characters
  52      *
  53      * @param  string $value
  54      * @return boolean
  55      */
  56     public function isValid($value)
  57     {
  58         if (!is_string($value) && !is_int($value)) {
  59             $this->_error(self::INVALID);
  60             return false;
  61         }
  62
  63         $this->_setValue($value);
  64         if (!ctype_xdigit((string) $value)) {
  65             $this->_error(self::NOT_HEX);
  66             return false;
  67         }
  68
  69         return true;
  70     }
  71
  72 }