CloudFlare 并通过 PHP 记录访问者 IP 地址

CloudFlare and logging visitor IP addresses via in PHP(CloudFlare 并通过 PHP 记录访问者 IP 地址)

问题描述

我正在尝试使用 PHP 的 $_SERVER['REMOTE_ADDR'] 来跟踪和记录访问我的网站的用户/访问者.PHP中IP地址跟踪的典型方法.

I'm trying to track and log users/visitors that are accessing my website using PHP's $_SERVER['REMOTE_ADDR'] to do so. A typical method for IP address tracking in PHP.

但是，我使用 CloudFlare 进行缓存等，并以 CloudFlare 的形式接收它们的 IP 地址:

However, I am using CloudFlare for caching and such and receiving their IP addresses as CloudFlare's:

108.162.212.* - 108.162.239.*

108.162.212.* - 108.162.239.*

在仍然使用 CloudFlare 的同时检索实际用户/访问者 IP 地址的正确方法是什么?

What would be a correct method of retrieving the actual users/visitors IP address while still using CloudFlare?

推荐答案

可用于 Cloudflare 的额外服务器变量有:

Extra server variables that are available to cloud flare are:

$_SERVER["HTTP_CF_CONNECTING_IP"] 真实访问者ip地址，这就是你想要的

$_SERVER["HTTP_CF_CONNECTING_IP"] real visitor ip address, this is what you want

$_SERVER["HTTP_CF_IPCOUNTRY"] 访问者所在国家

$_SERVER["HTTP_CF_RAY"]

$_SERVER["HTTP_CF_VISITOR"] 这可以帮助你知道它是 http 还是 https

$_SERVER["HTTP_CF_VISITOR"] this can help you know if its http or https

你可以这样使用它:

if (isset($_SERVER["HTTP_CF_CONNECTING_IP"])) {
  $_SERVER['REMOTE_ADDR'] = $_SERVER["HTTP_CF_CONNECTING_IP"];
}

如果您这样做，并且访问 IP 地址的有效性很重要，您可能需要验证 $_SERVER["REMOTE_ADDR"] 是否包含实际有效的 cloudflare IP 地址，因为任何人如果他能够直接连接到服务器 IP，则可以伪造标头.

If you do this, and the validity of the visiting IP address is important, you might need to verify that the $_SERVER["REMOTE_ADDR"] contains an actual valid cloudflare IP address, because anyone can fake the header if he was able to connect directly to the server IP.

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