mypmpro-show-overdue-text-shortcode.php

<?php //do not copy

/* This recipe will show a list of 'overdue' memberships if the level is within a grace period
 *
 * 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_show_member_overdue(){

	$current_user = wp_get_current_user();

	if( !$current_user ) {
		return '';
	}

	$levels = pmpro_getMembershipLevelsForUser( $current_user->ID );

	if( empty( $levels ) ) {
		return '';
	}

	$overdue_levels = array();

	foreach( $levels as $level ) {

		$grace_period = (bool)get_user_meta($current_user->ID, 'grace_period_'.$level->id, true);
		
		if( $grace_period ) {
			$overdue_levels[] = $level->name;
		}
	}

	if( empty( $overdue_levels ) ) {
		return '';
	}

	$output = '<div class="pmpro-member-overdue-notice">';
	$output .= '<strong>Your membership is overdue for the following level(s):</strong><br />';
	$output .= '<ul>';

	foreach( $overdue_levels as $level_name ) {
		$output .= '<li>' . esc_html( $level_name ) . '</li>';
	}

	$output .= '</ul>';
	$output .= 'Please update your payment information to continue enjoying your membership benefits.';
	$output .= '</div>';

	return $output;

}
add_shortcode( 'pmpro_member_overdue', 'mypmpro_show_member_overdue' );