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：
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:
$ _ 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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