Will redirect users without a $required_levels away from pages where the request uri begins with '/places/'. Useful to lock down the archive page and CPTs of GeoDirectory plugin.

my_pmpro_redirect_places.php

<?php

// Copy from below here

/**
 * Will redirect users without a $required_levels away from pages where the request uri begins with '/places/'.
 * Useful to lock down the archive page and CPTs of GeoDirectory plugin.
 */
 function my_pmpro_redirect_places() {
	$request_uri_to_redirect = '/places/';
	$required_levels = array( 2, 3 );

	if ( ! is_admin() && 
	substr(strtolower( $_SERVER['REQUEST_URI'] ), 0, strlen($request_uri_to_redirect) ) === $request_uri_to_redirect &&
	! pmpro_hasMembershipLevel( $required_levels )
	) {
		wp_redirect(home_url("membership-account/membership-levels"));
		exit;
	}
}
add_action('template_redirect', 'my_pmpro_redirect_places');