1. Go to this page and download the library: Download vatly/vatly-api-php 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/ */
vatly / vatly-api-php example snippets
use Vatly\API\VatlyApiClient;
$vatly = new VatlyApiClient();
$vatly->setApiKey('test_your_api_key_here');
$vatly->checkouts->create([...]);