$ _SERVER ["SCRIPT_URL"]:何时可靠显示? [英] $_SERVER["SCRIPT_URL"]: when is it reliably present?

问题描述

在我的本地环境中(Apache 2.2.26上的PHP 5.4.24)存在$_SERVER["SCRIPT_URL"]，但是我读到这个变量并不总是存在，即使我无法确切地找到它何时以及何时出现.不是.

In my local environment (PHP 5.4.24 on Apache 2.2.26) $_SERVER["SCRIPT_URL"] is present, but I read around that this variable is not always present, even though I couldn't find exactly when it is and when it isn't.

我想知道可靠地显示此变量需要什么.

I'd like to know what is required for this variable to be reliably present.

推荐答案

仅在启用了mod_rewrite时可用:

It's only available when you have mod_rewrite enabled:

http://httpd.apache.org/docs/2.0/rewrite/rewrite_intro.html#EnvVar

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