用PHP写出显示客户端IP与服务器IP的代码

//显示客户端I

function get_client_ip() {#

if(getenv('HTTP_CLIENT_IP')) {

$client_ip = getenv('HTTP_CLIENT_IP');

} elseif(getenv('HTTP_X_FORWARDED_FOR')) {

$client_ip = getenv('HTTP_X_FORWARDED_FOR');

} elseif(getenv('REMOTE_ADDR')) {

$client_ip = getenv('REMOTE_ADDR');

} else {

$client_ip = $HTTP_SERVER_VAR['REMOTE_ADDR'];

}

return $client_ip;

}

//服务器IP

function get_server_ip(){

if (isset($_SERVER))

{

if($_SERVER['SERVER_ADDR']) $huoqu_ip=$_SERVER['SERVER_ADDR'];

else $huoqu_ip=$_SERVER['LOCAL_ADDR'];

}

else

{

$huoqu_ip=getenv('SERVER_ADDR');

}

return $huoqu_ip;

}