如何使用PHP获取客户端的IP地址和端口？ [英] How can I get the IP address and port of a client with PHP?

问题描述

如何使用PHP获取客户端的IP和端口？

How do I get the IP and port of a client with PHP?

我尝试了下面的脚本，但它只给了我IP地址。

I tried the script below but it only gives me the IP address.

<?php print $_SERVER['REMOTE_ADDR']; ?>

推荐答案

端口在http服务器（Apache或其他和主要是80或443）

Port is defined in http server (Apache or other and mostly it is 80 or 443)

您可以在以下网址查看php $ _SERVER变量： http://www.php.net/manual/en/reserved.variables.server.php

The php $_SERVER variables you can check at : http://www.php.net/manual/en/reserved.variables.server.php

我确信：
REMOTE_ADDR'
用户查看当前页面的IP地址。

I am sure that : REMOTE_ADDR' The IP address from which the user is viewing the current page.

但是如果你的服务器在NAT后面：

But if your server is behind NAT:

如果你是从代理服务器后面服务，你几乎可以节省
这些$ _SERVER变量在你的机器后面的
上做了多少代理。

If you are serving from behind a proxy server, you will almost certainly save time by looking at what these $_SERVER variables do on your machine behind the proxy.

$ _ SERVER ['HTTP_X_FORWARDED_FOR']代替$ _SERVER ['REMOTE_ADDR']

$_SERVER['HTTP_X_FORWARDED_FOR'] in place of $_SERVER['REMOTE_ADDR']

$ _ SERVER [ 'HTTP_X_FORWARDED_HOST']和
$ _SERVER ['HTTP_X_FORWARDED_SERVER']代替
$ _SERVER ['SERVER_NAME']

$_SERVER['HTTP_X_FORWARDED_HOST'] and $_SERVER['HTTP_X_FORWARDED_SERVER'] in place of $_SERVER['SERVER_NAME']

： - ）

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