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Direktori : /home2/selectio/www/geniusgroove.in/crm/application/libraries/Zend/Validate/Barcode/ |
Current File : //home2/selectio/www/geniusgroove.in/crm/application/libraries/Zend/Validate/Barcode/Issn.php |
<?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to license@zend.com so we can send you a copy immediately. * * @category Zend * @package Zend_Validate * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id$ */ /** * @see Zend_Validate_Barcode_AdapterAbstract */ require_once 'Zend/Validate/Barcode/AdapterAbstract.php'; /** * @category Zend * @package Zend_Validate * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Validate_Barcode_Issn extends Zend_Validate_Barcode_AdapterAbstract { /** * Allowed barcode lengths * @var integer */ protected $_length = array(8, 13); /** * Allowed barcode characters * @var string */ protected $_characters = '0123456789X'; /** * Checksum function * @var string */ protected $_checksum = '_gtin'; /** * Allows X on length of 8 chars * * @param string $value The barcode to check for allowed characters * @return boolean */ public function checkChars($value) { if (strlen($value) != 8) { if (strpos($value, 'X') !== false) { return false; } } return parent::checkChars($value); } /** * Validates the checksum * * @param string $value The barcode to check the checksum for * @return boolean */ public function checksum($value) { if (strlen($value) == 8) { $this->_checksum = '_issn'; } else { $this->_checksum = '_gtin'; } return parent::checksum($value); } /** * Validates the checksum () * ISSN implementation (reversed mod11) * * @param string $value The barcode to validate * @return boolean */ protected function _issn($value) { $checksum = substr($value, -1, 1); $values = str_split(substr($value, 0, -1)); $check = 0; $multi = 8; foreach($values as $token) { if ($token == 'X') { $token = 10; } $check += ($token * $multi); --$multi; } $check %= 11; $check = 11 - $check; if ($check == $checksum) { return true; } else if (($check == 10) && ($checksum == 'X')) { return true; } return false; } }