if ('12') { $prev = 'http://'.$_SERVER['HTTP_HOST'].'/search/ass/12'; } ?> if ('12' == '1') { $prev = 'http://'.$_SERVER['HTTP_HOST'].'/search/ass/1'; } ?> if ('14' && '14' <= 10) { $next = 'http://'.$_SERVER['HTTP_HOST'].'/search/ass/14'; } ?>