Thank You!

<?php
$ref = isset($_GET['ref']) ? sanitize_text_field($_GET['ref']) : 'N/A';
$status = isset($_GET['status']) ? sanitize_text_field($_GET['status']) : 'pending';
if($status === 'success'){
    echo "Thank you for your purchase! Your payment has been confirmed. Order reference: $ref.";
}else{
    echo "Your payment is $status. Please contact support if needed. Reference: $ref.";
}
?>