1. Go to this page and download the library: Download connect/connect-client 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/ */
connect / connect-client example snippets
use Connect\Connect;
Connect::initialize('your-project-id', 'your-push-api-key');