1. Go to this page and download the library: Download v.chetkov/cloud-payments 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/ */
v.chetkov / cloud-payments example snippets
$config = new Chetkov\CloudPayments\Config(
'user',
'password'
);