用PHP写出显示客户端IP与服务器IP的代码

服务器

$_SERVER['REMOTE_ADDR']

客户端

functiongetOnlineIP(){

if (getenv(‘HTTP_CLIENT_IP’)) return getenv(‘HTTP_CLIENT_IP’);

if (getenv(‘HTTP_X_FORWARDED_FOR’)) return getenv(‘HTTP_X_FORWARDED_FOR’);

if ($_SERVER["REMOTE_ADDR"])return $_SERVER["REMOTE_ADDR"];

if (!empty($HTTP_SERVER_VARS['REMOTE_ADDR'])) return$HTTP_SERVER_VARS['REMOTE_ADDR'];

}