WordPress: Redirect Main Site to Subsite in Multisite Where user is NOT logged in
Try this function wpse66115_redirect_to_sub_site() { if ( is_main_site() ) { if ( is_user_logged_in() ) { } else { exit( wp_redirect( ‘http://old.heiledeg.no’, 301 ) ); } } } add_action( ‘parse_request’, ‘wpse66115_redirect_to_sub_site’ );