ECMall Ecmall二次开发 - PHP技术-

php提取真实ip源码
function getIP()
        {
            static $realip;
            if (isset($_SERVER)){
                if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])){
                    $realip = $_SERVER["HTTP_X_FORWARDED_FOR"];
                } else if (isset($_SERVER["HTTP_CLIENT_IP"])) {
                    $realip = $_SERVER["HTTP_CLIENT_IP"];
                } else {
                    $realip = $_SERVER["REMOTE_ADDR"];
                }
            } else {
                if (getenv("HTTP_X_FORWARDED_FOR")){
                    $realip = getenv("HTTP_X_FORWARDED_FOR");
                } else if (getenv("HTTP_CLIENT_IP")) {
                    $realip = getenv("HTTP_CLIENT_IP");
                } else {
                    $realip = getenv("REMOTE_ADDR");
                }
            }
            return $realip;
        }

==================================
<?    
  function   iptype1   ()   {    
  if   (getenv("HTTP_CLIENT_IP"))   {    
        return   getenv("HTTP_CLIENT_IP");    
  }    
  else   {    
        return   "none";    
  }    
  }    
  function   iptype2   ()   {    
  if   (getenv("HTTP_X_FORWARDED_FOR"))   {    
        return   getenv("HTTP_X_FORWARDED_FOR");    
  }    
  else   {    
        return   "none";    
  }    
  }    
  function   iptype3   ()   {    
  if   (getenv("REMOTE_ADDR"))   {    
        return   getenv("REMOTE_ADDR");    
  }    
  else   {    
        return   "none";    
  }    
  }    
  function   ip()   {    
  $ip1   =   iptype1();    
      $ip2   =   iptype2();    
  $ip3   =   iptype3();    
  if   (isset($ip1)   &&   $ip1   !=   "none"   &&   $ip1   !=   "unknown")   {    
        return   $ip1;    
  }    
  elseif   (isset($ip2)   &&   $ip2   !=   "none"   &&   $ip2   !=   "unknown")   {    
        return   $ip2;    
  }    
  elseif   (isset($ip3)   &&   $ip3   !=   "none"   &&   $ip3   !=   "unknown")   {    
        return   $ip3;    
  }        
      else   {    
      return   "none";    
  }    
  }    
    
  Echo   ip();    
  ?>

作者：noel@ECMall Ecmall二次开发 - PHP技术-
地址：http://www.laohucheng.com/post/196/
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