interface/modules/zend_modules/library/Zend/Validator/Hex.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Validator;
  11
  12 class Hex extends AbstractValidator
  13 {
  14     const INVALID = 'hexInvalid';
  15     const NOT_HEX = 'notHex';
  16
  17     /**
  18      * Validation failure message template definitions
  19      *
  20      * @var array
  21      */
  22     protected $messageTemplates = array(
  23         self::INVALID => "Invalid type given. String expected",
  24         self::NOT_HEX => "The input contains non-hexadecimal characters",
  25     );
  26
  27     /**
  28      * Returns true if and only if $value contains only hexadecimal digit characters
  29      *
  30      * @param  string $value
  31      * @return bool
  32      */
  33     public function isValid($value)
  34     {
  35         if (!is_string($value) && !is_int($value)) {
  36             $this->error(self::INVALID);
  37             return false;
  38         }
  39
  40         $this->setValue($value);
  41         if (!ctype_xdigit((string) $value)) {
  42             $this->error(self::NOT_HEX);
  43             return false;
  44         }
  45
  46         return true;
  47     }
  48 }