PHP获取客户端的IP

2022-10-14 09:14:39

function getClientIP(){
   global $ip;
   if (getenv("HTTP_CLIENT_IP"))
       $ip = getenv("HTTP_CLIENT_IP");
   else if(getenv("HTTP_X_FORWARDED_FOR"))//用了代理服务器时
       $ip = getenv("HTTP_X_FORWARDED_FOR");
   else if(getenv("REMOTE_ADDR"))
       $ip = getenv("REMOTE_ADDR");
   else
       $ip = "Unknow";

   return $ip;
}