/**
 * 获取真实 IP 地址
 *
 * @param 
 * @author 编程之家 jb51.cc jb51.cc
 **/
function getRealIpAddr()//
 {
 if (!emptyempty($_SERVER['HTTP_CLIENT_IP']))
 {
 $ip=$_SERVER['HTTP_CLIENT_IP'];
 }
 elseif (!emptyempty($_SERVER['HTTP_X_FORWARDED_FOR']))
 //to check ip is pass from proxy
 {
 $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
 }
 else
 {
 $ip=$_SERVER['REMOTE_ADDR'];
 }
 return $ip;
 }


/***   代码来自编程之家 jb51.cc（jb51.cc）   ***/