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: Hex.php 22668 2010-07-25 14:50:46Z thomas $

    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. String expected",

    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 }