是什么在操作之间的差异。和^，而^（。*）$？ [英] What is the difference in operation between . and ^ and ^(.*)$?

问题描述

之间的操作的区别是什么：

What is the difference in operation between:

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。指任何字符和字符串的^开头。

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

感谢您的答复！

推荐答案

首先，让我们了解如何登录页面匹配。

First let's understand how landing page is matched.

有关目标网页的URI模式是 ^ $ 在.htaccess， ^ / $ 在Apache的配置。因此，你可以放心地使用 ^ /？$ 普遍。

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的每个URL（包括登陆页面即 http://domain.com/ ）
2. 您的第二个重写规则将匹配的每个URL（除登陆页面）。作为一个点不匹配 ^ $ URI模式。
3. 您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 ）但是有一个不必要的捕获组和仅稍长的版本^ 。

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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