1. Go to this page and download the library: Download certly/threatexchange 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/ */
certly / threatexchange example snippets
$tx = new Certly\ThreatExchange\ThreatExchange("123", "abc");
echo var_dump($tx->getThreatExchangeMembers());