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) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) 7 * @license http://framework.zend.com/license/new-bsd New BSD License 8 */ 9 10namespace Zend\Validator\Barcode; 11 12class Code39 extends AbstractAdapter 13{ 14 /** 15 * @var array 16 */ 17 protected $check = array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onstructor for this barcode adapter 29 */ 30 public function __construct() 31 { 32 $this->setLength(-1); 33 $this->setCharacters('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ -.$/+%'); 34 $this->setChecksum('code39'); 35 $this->useChecksum(false); 36 } 37 38 /** 39 * Validates the checksum (Modulo 43) 40 * 41 * @param string $value The barcode to validate 42 * @return bool 43 */ 44 protected function code39($value) 45 { 46 $checksum = substr($value, -1, 1); 47 $value = str_split(substr($value, 0, -1)); 48 $count = 0; 49 foreach ($value as $char) { 50 $count += $this->check[$char]; 51 } 52 53 $mod = $count % 43; 54 if ($mod == $this->check[$checksum]) { 55 return true; 56 } 57 58 return false; 59 } 60} 61