Restrict all pages except home, Paid Memberships Pro pages, and specific pages for non-members.

restrict-all-pages-non-members.php

<?php
/**
 * This recipe will restrict all pages except Paid Memberships Pro pages,
 * or the home page of your website, the search results page, the 404 page, or defined post/pages to non-members,
 * non-approved members, or logged-out users.
 *
 * This won't affect administrators.
 *
 * 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_pmpro_redirect_non_members() {

	$allowed_post_ids = array( 2, 35, 27, 55 ); // set the Post ID of your allowed pages, e.g. Contact Us, here.

	global $pmpro_pages;

	if ( is_search() || is_404() || in_array( get_the_ID(), $allowed_post_ids ) || is_page( $pmpro_pages ) || is_home() || current_user_can( 'manage_options' ) ) {
		return;
	}

	$access = false;

	global $current_user, $pmpro_pages;
	$user_id = $current_user->ID;

	if ( ! empty( $user_id ) ) {
		// Get approval status
		if ( class_exists( 'PMPro_Approvals' ) ) {
			$approval = PMPro_Approvals::getUserApproval( $user_id );
			// User currently does not need approval.
			if ( empty( $approval ) ) {
				return;
			}
			$approval_status = $approval['status'];
			if ( ! empty( $approval_status ) && $approval_status != 'approved' ) {
				$access = false;
			} else {
				$access = true;
			}
		}

		// Make sure logged-in non-members don't have access.
		if ( ! pmpro_hasMembershipLevel() ) {
			$access = false;
		}
	}

	// if the user is not approved, redirect to BuddyPress restricted page or home page if add on not enabled.
	if ( ! $access ) {
		wp_redirect( home_url() );
		exit;
	}
}
add_action( 'template_redirect', 'my_pmpro_redirect_non_members', 45 );