redirect_non_member.php

<?php

/*
 * Redirects members-only content to the restricted access page if a user is logged out or not a member.
 */

function redirect_non_member() {
	$okay_pages = array(pmpro_getOption('billing_page_id'), pmpro_getOption('account_page_id'), pmpro_getOption('levels_page_id'), pmpro_getOption('checkout_page_id'), pmpro_getOption('confirmation_page_id'));

	if ( ! pmpro_has_membership_access() && ! is_front_page() && ! is_page( $okay_pages ) ) {
		wp_redirect( site_url ( '/access-restricted/' ) );
		exit;
	}
}
add_action( 'template_redirect', 'redirect_non_member' );