Display the Unique Member Number on Membership Card Add On Paid Memberships Pro

show_member_number_on_card.php

<?php

 /**
  * This will show a member number on the membership card for Paid Memberships Pro. Please read all comments below!
  * This requires the following - https://www.paidmembershipspro.com/generate-a-unique-member-number-for-display-on-membership-account-confirmation-email-and-more/
  * At the time of this writing, created a custom page template and added in hook "do_action( 'pmpro_membership_card_additional_fields', $pmpro_membership_card_user );" to the relevant area. 
  * Add this code to your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
  * Reach out to the PMPro Support team for help with this code recipe - https://www.paidmembershipspro.com/support/
  */
  
  function my_show_member_number_on_card( $user ) {

	if( !pmpro_hasMembershipLevel() ) {
		return;
	}

	$member_id = get_user_meta( $user->ID, 'member_number', true );

	if( empty( $member_id ) ) {
		// lets generate it on the fly.
		$member_id = generate_member_number( $user->ID );
	}

	echo '<p><strong>Membership Number:</strong> ' . $member_id . '</p>';

}
add_action( 'pmpro_membership_card_additional_fields', 'my_show_member_number_on_card' );

This recipe is included in the blog post on "Display a Unique Membership Number on your Member’s List, Membership Directory, and Membership Card." at Paid Memberships Pro here: https://www.paidmembershipspro.com/display-a-unique-membership-number-on-your-members-list-membership-directory-and-membership-card/