1. Go to this page and download the library: Download liagkos/diasrf 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/ */
liagkos / diasrf example snippets
use Liagkos\Banks\Dias\RF;
$merchantId = '1234'; // leading '9' is ignored
$paymentIdentifier = '123456789012345';
$RF = RF::create($merchantId, $paymentIdentifier);