使用PHP检测SSL [英] Detecting SSL With PHP

问题描述

可能重复：

如何在不使用$ _SERVER ['HTTPS']的情况下使用HTTPS

Possible Duplicate:
How To Find Out If You are Using HTTPS Without $_SERVER['HTTPS']

我去网上寻找检测服务器是否使用HTTPS连接的方法，但没有一个网站似乎有所有的答案（和一些不同的）。究竟是什么方法来检测服务器是否使用与PHP的HTTPS连接？我需要知道几种检测SSL的方法，因为我的一些脚本被重新分配，各种服务器处理不同的东西。

I went looking around the web for ways to detect if a server is using an HTTPS connection, but no one site seemed to have all the answers (and some different ones). What exactly are all the ways to detect if a server is using an HTTPS connection with PHP? I need to know several ways to detect SSL as some of my scripts are redistributed and various servers handle things differently.

推荐答案

$ _ SERVER ['HTTPS']

如果脚本设置为非空值通过HTTPS协议查询。

注意：当使用ISAPI和IIS时，如果请求不是通过HTTPS协议进行的，则值 off 。

Set to a non-empty value if the script was queried through the HTTPS protocol.
Note: Note that when using ISAPI with IIS, the value will be off if the request was not made through the HTTPS protocol.

http：// www .php.net / manual / en / reserved.variables.server.php

Ergo，这样做：

Ergo, this'll do:

if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') {
    // SSL connection
}

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