之间的操作有什么区别.和 ^ 和 ^(.*)$? [英] What is the difference in operation between . and ^ and ^(.*)$?

问题描述

操作上有什么区别:

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [L]

和

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . index.php [L]

和

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php [L]

我知道."表示字符串的任何字符和^"开头.

I know that "." means any character and "^" beginning of string.

感谢回复！

推荐答案

首先让我们了解着陆页是如何匹配的.

First let's understand how landing page is matched.

登陆页面 URI 模式是 .htaccess 中的 ^$，Apache 配置中的 ^/$.因此，您可以安全地普遍使用 ^/?$.

For landing page URI pattern is ^$ in .htaccess, ^/$ in Apache config. Thus you can safely use ^/?$ universally.

1. 您的第一个重写规则将匹配每个网址(包括着陆页，即 http://domain.com/).
2. 您的第二个重写规则将匹配每个网址(着陆页除外).由于单个 DOT 将不匹配 ^$ URI 模式.
3. 你的第三个重写规则也将匹配每个 URL(包括登陆页面，即 http://domain.com)，但有一个不必要的捕获组和只是^.

1. Your first rewrite rule will match every URL (including landing page i.e. http://domain.com/).
2. Your second rewrite rule will match every URL (except landing page). As single DOT will not match ^$ URI pattern.
3. Your third rewrite rule will also match every URL (including landing page i.e. http://domain.com) but has an unnecessary capturing group and longish version of just ^.

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