php 使用哪个：REMOTE_ADDR 或 SERVER_ADDR
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Which to use: REMOTE_ADDR or SERVER_ADDR
提问by syhuro
Any real difference between
之间的任何真正区别
$_SERVER['REMOTE_ADDR']
$_SERVER['SERVER_ADDR']
I'm tracking visitors to a page, and I've always used REMOTE_ADDR, but recently I saw a script that collected both information. Is this a better practice or not needed?
我正在跟踪页面的访问者，我一直使用REMOTE_ADDR，但最近我看到了一个收集这两种信息的脚本。这是更好的做法还是不需要？
回答by Sarfraz
The $_SERVER['REMOTE_ADDR']returns the IP address from which the user is viewing the current page. And $_SERVER['SERVER_ADDR']returns the IP address of the server under which the current script is executing.
在$_SERVER['REMOTE_ADDR']返回的IP地址从用户正在浏览当前页面。并$_SERVER['SERVER_ADDR']返回当前脚本在其下执行的服务器的 IP 地址。
So what should you use:
那么你应该使用什么：
You should use $_SERVER['REMOTE_ADDR'].
你应该使用$_SERVER['REMOTE_ADDR'].
More Info:
更多信息：
回答by jmz
SERVER_ADDRis the address of the server PHP code is run on. You don't need to collect it. REMOTE_ADDRis the one you want.
SERVER_ADDR是运行 PHP 代码的服务器的地址。你不需要收集它。REMOTE_ADDR是你想要的。
