Paid Memberships Pro Redirect Non-members to Login/Homepage

pmpro-redirect-non-members.php

<?php //Do not copy
/*
	Redirect to login or homepage if user is logged out or not a member
	Add this code to your active theme's functions.php file.
*/
function my_template_redirect()
{
	global $current_user;
	
	if( !function_exists( 'pmpro_login_url' ) ){
		return;
	}

	$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 the user doesn't have a membership, send them home				
	if(!$current_user->ID 
		&& !is_home()
		&& !is_page($okay_pages) 
		&& !strpos($_SERVER['REQUEST_URI'], "login"))
	{		
		wp_redirect( pmpro_login_url()."?redirect_to=" . urlencode( $_SERVER['REQUEST_URI'] ) );
	}	
	elseif(is_page() 
			&& !is_home()
			&& !is_page($okay_pages) 
			&& !$current_user->membership_level->ID)
	{		
		wp_redirect(home_url());
	}
}
add_action('template_redirect', 'my_template_redirect');