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function getIp(){     $onlineip='';     if(getenv('HTTP_CLIENT_IP')&&strcasecmp(getenv('HTTP_CLIENT_IP'),'unknown')){         $onlineip=getenv('HTTP_CLIENT_IP');     } elseif(getenv('HTTP_X_FORWARDED_FOR')&&strcasecmp(getenv('HTTP_X_FORWARDED_FOR'),'unknown')){         $onlineip=getenv('HTTP_X_FORWARDED_FOR');     } elseif(getenv('REMOTE_ADDR')&&strcasecmp(getenv('REMOTE_ADDR'),'unknown')){         $onlineip=getenv('REMOTE_ADDR');     } elseif(isset($_SERVER['REMOTE_ADDR'])&&$_SERVER['REMOTE_ADDR']&&strcasecmp($_SERVER['REMOTE_ADDR'],'unknown')){         $onlineip=$_SERVER['REMOTE_ADDR'];     }     return $onlineip; }

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