分享PHP获取客户端IP的几种不同方式

分享PHP获取客户端IP的几种不同方式

PHP获取IP的方法有许多种，我们今天向大家总结了六种方法，希望通过对这六种方法的学习，能够加深我们对PHP语言的进一步了解，巩固我们所掌握的知识。

PHP获取IP方法一：

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function GetIP()    {    if(!empty($_SERVER["HTTP_CLIENT_IP"]))       $cip = $_SERVER["HTTP_CLIENT_IP"];    else if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))       $cip = $_SERVER["HTTP_X_FORWARDED_FOR"];    else if(!empty($_SERVER["REMOTE_ADDR"]))       $cip = $_SERVER["REMOTE_ADDR"];    else    $cip = "无法获取！";    return $cip;    }    echo "<br>";

PHP获取IP方法二：

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error_reporting (E_ERROR | E_WARNING | E_PARSE);   if($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"])    {                                                        $ip = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"];                  }                                                 elseif($HTTP_SERVER_VARS["HTTP_CLIENT_IP"])       {                                                        $ip = $HTTP_SERVER_VARS["HTTP_CLIENT_IP"];                     }                                                 elseif ($HTTP_SERVER_VARS["REMOTE_ADDR"])          {                                                        $ip = $HTTP_SERVER_VARS["REMOTE_ADDR"];                          }                                                 elseif (getenv("HTTP_X_FORWARDED_FOR"))             {                                                        $ip = getenv("HTTP_X_FORWARDED_FOR");                             }                                                 elseif (getenv("HTTP_CLIENT_IP"))                   {                                                        $ip = getenv("HTTP_CLIENT_IP");                                   }                                                       elseif (getenv("REMOTE_ADDR"))                      {                                                        $ip = getenv("REMOTE_ADDR");                                     }                                                       else                                       {                                                        $ip = "Unknown";                                                 }                                                 echo "你的IP地址是:".$ip."<br>";

PHP获取IP方法三：

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$iipp = $_SERVER["REMOTE_ADDR"];   echo $iipp;   echo "<br>";

PHP获取IP方法四：

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$user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"];   $user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"];   echo $user_IP."<br>";

PHP获取IP方法五：

 

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function get_real_ip()   {          $ip=false;          if(!empty($_SERVER["HTTP_CLIENT_IP"]))          {               $ip = $_SERVER["HTTP_CLIENT_IP"];          }          if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))          {               $ips = explode (", ", $_SERVER['HTTP_X_FORWARDED_FOR']);               if ($ip)               {                        array_unshift($ips, $ip); $ip = FALSE;               }               for ($i = 0; $i < count($ips); $i++)               {                        if (!eregi ("^(10|172\.16|192\.168)\.", $ips[$i]))                        {                                  $ip = $ips[$i];                                  break;                        }               }          }          return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);   }   echo get_real_ip();   echo "<br>";

PHP获取IP方法六：

 

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if(getenv('HTTP_CLIENT_IP'))   {          $onlineip = getenv('HTTP_CLIENT_IP');   }   elseif(getenv('HTTP_X_FORWARDED_FOR'))   {          $onlineip = getenv('HTTP_X_FORWARDED_FOR');   }   elseif(getenv('REMOTE_ADDR'))   {          $onlineip = getenv('REMOTE_ADDR');   }   else {          $onlineip = $HTTP_SERVER_VARS['REMOTE_ADDR'];   }   echo $onlineip;   echo "<br>";