Show WordPress User ID on Membership Card

my_show_userid_on_membership_card.php

<?php
/**
 * This recipe will add the member's WordPress User ID to your Membership Card
 * 
 * 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 my_show_userid_on_membership_card( $pmpro_membership_card_user ) {

	echo '<p><strong>Member ID:</strong> ' . $pmpro_membership_card_user->ID . '</p>';

}
add_action( 'pmpro_membership_card_after_card', 'my_show_userid_on_membership_card' );