连字符.htaccess文件重写规则 [英] Hyphen in .htaccess file rewrite rule

问题描述

我在看从旧网站我们的老开发商做了这个规则，我也从来没见过。

I am looking at this rule from an old site one of our old developers did, and I have never saw it.

RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www.)?domain.com$ [NC]
RewriteCond %{REQUEST_URI} ^/extension1/(.*)$ [OR]
RewriteCond %{REQUEST_URI} ^/extension2/(.*)$ [OR]
RewriteCond %{REQUEST_URI} ^/extension3/(.*)$
RewriteRule ^(.*)$ - [L,R=404]

我看到，如果我去域与这些扩展的一个，它只是404的。

I see that if I go to the domain with one of those extensions, it just 404's.

我认为正在发生的事情是，如果它的主机相匹配，与extenions之一，它只是404的。我明白了一切到最后一行，因为 - 抛出我送行。

What I think is happening is if it matches the host, and one of the extenions, it just 404's. I understand everything up to the last line because the - throws me off.

什么的 - 做的最后一条规则

What does the - do in the last rule?

感谢

推荐答案

在 - 表示通过传递URI，什么也不做。它本质上不执行任何到URI和仅适用的标志，在这种情况下，返回404

The - means "pass the URI through and do nothing". It essentially does nothing to the URI and only applies the flags, which in this case returns a 404.

有关更多信息，请参见 mod_rewrite的文档下 - （破折号）

For more info, see the mod_rewrite documentation under "- (dash)"

一个破折号表示没有替代应该执行（现有路径是通过非接触传递）。这用于当一个标志（见下文）需要在不改变路径要施加

A dash indicates that no substitution should be performed (the existing path is passed through untouched). This is used when a flag (see below) needs to be applied without changing the path.

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