my-pmpro-stripe-description.php

<?php   // do not copy this line.
/**
 * This recipe will send specific user fields to your Stripe payment description
 * This will only appear on the initial payment, not recurring orders
 * 
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function mypmpro_stripe_description( $description, $order ) {

    // Retrieve user meta with default empty string if not set

    $user_title= ! empty( $_REQUEST['user_title'] ) ? sanitize_text_field( $_REQUEST['user_title'] ) : 'N/A';
	$dioscese = ! empty( $_REQUEST['dioscese'] ) ? sanitize_text_field( $_REQUEST['dioscese'] ) : 'N/A';

    // Construct the description
    $description = "Title: " . $user_title . ", " ."Dioscese: " . $dioscese;

    return $description;
}
add_filter( 'pmpro_stripe_order_description', 'mypmpro_stripe_description', 10, 2 );