php获取客户端公网ip代码

<?php

/*如果是本地服务器获取客户端的ip地址是 127.0.0.1

如果是域名服务器获取客户端的是公网ip地址*/

function get_client_ip()

 {

      $ipaddress = '';

      if (getenv('HTTP_CLIENT_IP'))

          $ipaddress = getenv('HTTP_CLIENT_IP');

      else if(getenv('HTTP_X_FORWARDED_FOR'))

          $ipaddress = getenv('HTTP_X_FORWARDED_FOR');

      else if(getenv('HTTP_X_FORWARDED'))

          $ipaddress = getenv('HTTP_X_FORWARDED');

      else if(getenv('HTTP_FORWARDED_FOR'))

          $ipaddress = getenv('HTTP_FORWARDED_FOR');

      else if(getenv('HTTP_FORWARDED'))

          $ipaddress = getenv('HTTP_FORWARDED');

      else if(getenv('REMOTE_ADDR'))

          $ipaddress = getenv('REMOTE_ADDR');

      else

          $ipaddress = 'UNKNOWN';

      return $ipaddress;

 }

echo get_client_ip();

?>

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php获取客户端公网ip代码

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