Generar código de barras 'Interleaved 2 of 5'

barcode.php

<?php
require 'vendor/autoload.php';

use Zend\Barcode\Barcode;

header('Content-Type: image/gif');
$barcodeOptions = [
	'text' => '202675653930240016120303473904220110529', 
	'barHeight' => '30', 
	'withChecksum' => true
];
$barcode = Barcode::factory('code25interleaved', 'image', $barcodeOptions);

imagegif($barcode->draw(), 'barcode.gif');