$ _ SERVER ['HTTP_HOST'] =一个IP，这不是我的服务器 [英] $_SERVER['HTTP_HOST'] = an ip that's not my server

问题描述

我的PHP脚本有$ _ SERVER ['HTTP_HOST']是等于拥有无关，与我的服务器的IP中的IP。

my php script has $_SERVER['HTTP_HOST'] is equals to an ip that has nothing to do with my server's ip.

有人得到了一个简单的解释？

Someone got an easy explanation?

（我在想一些机器人发出了一个错误完全地主机头，但我不认为它可以用错误的主机头连接到服务器= /）

(I was thinking some bot is sending a completly wrong Host header, but i don't think it can connect to a server with a wrong host header =/ )

THX

推荐答案

HTTP_HOST 由客户提供，在主持人：的HTTP请求的一部分。它可以随意改变的，虽然我不明白为什么人会愿意。请参见手册页。

HTTP_HOST is provided by the client, in the Host: part of the HTTP request. It can be changed arbitrarily, though I can't see why one would want to. See the manual page.

使用 $ _ SERVER ['SERVER_NAME'] 来代替。这是通过服务器本身定义

Use $_SERVER['SERVER_NAME'] instead. This is defined by the server itself.

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