I am trying to create Worldpay gateway with help of Worldpay library and my own extending code. Here is my code which I tried and failed to work on.
require_once('init.php');
use lib\Worldpay;
if($_POST == $_SERVER['REQUEST_METHOD']) {
//Form Submit Actions, Here i have called Worldpay class to create object.
$worldpay = new Worldpay('Key'); //line no: 25
} ?>
<script src="https://cdn.worldpay.com/v1/worldpay.js"></script>
<form action="" method="post">
</form>
I have tried to find similar question and answer. I found this. Eventhough i can't make it work, when form is submitted to the same page. Here is the error message how it looks like.
Fatal error: Class 'lib\Worldpay' not found in /var/www/wp/kvcodes/wp-content/plugins/kvcodes-worldpay/WorldPay.php on line 25
How do I fix this issue, when form is submitted.