1. Go to this page and download the library: Download payload/payload-api 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/ */
payload / payload-api example snippets
ayload\API as pl;
use Payload\API as pl;
pl::$api_key = 'secret_key_3bW9JMZtPVDOfFNzwRdfE';