Hi everyone: the error is 502 Bad Gateway nginx/0.7.65 my php scripts: $RTR =& load_class('Router'); ---->pass ....... $class = $RTR->fetch_class(); ---->pass ...... $CI = new $class(); ---->nopass my breakpoint step here give me some advice ,friends,tks Posted at Nginx Forum: http://forum.nginx.org/read.php?2,213761,213761#msg-213761