if ('') { $prev = 'http://'.$_SERVER['HTTP_HOST'].'/search/group/'; } ?> if ('' == '1') { $prev = 'http://'.$_SERVER['HTTP_HOST'].'/search/group/1'; } ?> if ('2' && '2' <= 10) { $next = 'http://'.$_SERVER['HTTP_HOST'].'/search/group/2'; } ?>