1. Go to this page and download the library: Download hidasw/asn1 library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
hidasw / asn1 example snippets
// $hex is hex form such from bin2hex()
$return = asn1::parse($hex);