mod_rewrite的似乎忽略[L]标志 [英] mod_rewrite seems to ignore [L] flag

问题描述

我试图使用 [L] 标志重写规则，但它似乎没有不工作。我想，如果你可以在页面：

I'm trying to use the [L] flag in RewriteRule, but it doesn't seem to work. I'd like that if you call the page:

www.domain.com/admin/

这将您重定向到：

it redirects you to:

www.domain.com/backend.php

否则，如果调用任何其他网页（除了某些页）重定向到：

Otherwise, if you call any other page (except for some pages) it redirects to:

www.domain.com/index.php

下面是我到目前为止有：

Here is what I have so far:

RewriteEngine on

RewriteRule ^admin/(.*) /backend.php/$1 [L]

RewriteCond $1 !^(index\.php|admin|assets|images|uploads|robots\.txt)
RewriteRule ^(.*)$ /index.php/$1 [L]

如果我只用了第一条规则，它的工作原理（但显然不会重定向其他页面的index.php）。如果我添加第二个规则，服务器似乎忽略第一个规则（我认为它是覆盖的第二条规则，即使我添加了 [L] 标志）

If I use only the first rule, it works (but obviously doesn't redirect other pages to index.php). If I add the second rule, the server seems to ignore the first rule (I think it is "overwritten" by the second rule, even if I added the [L] flag)

推荐答案

这是不是如何→的作品。重写引擎将通过所有的规则，直到该URI进入发动机不断循环是相同的所述一个出来。在→只是告诉重写引擎停止应用规则的在当前循环迭代的。所以说你有：

This isn't how L works. The rewrite engine will continually loop through all the rules until the URI going into the engine is the same as the one coming out. The L just tells the rewrite engine to stop applying rules in the current loop iteration. So say you have:

RewriteRule ^(.*)$ /foo/$1 [L]
RewriteRule ^(.*)$ /bar/$1 [L]

在1次迭代，给出的URI /等等，我得到 /富/等等，因为它停止后重写第一条规则（但仍将继续循环）。如果我删除→：

after 1 iteration, given the URI /blah, I get /foo/blah because it stops rewriting after the first rule (but will still continue to loop). If I remove the L:

RewriteRule ^(.*)$ /foo/$1
RewriteRule ^(.*)$ /bar/$1

经过1次迭代，给出的URI /等等，我得到 /酒吧/富/等等。这两个规则得到应用，一前一后，因为→不存在停止它。

after 1 iteration, given the URI /blah, I get /bar/foo/blah. Both rules get applied, one after the other because the L isn't there to stop it.

您需要从此改写首先在你的第二个规则，以prevent它添加一个条件，无论这些人会做的事：

You need to add a condition in your second rule to prevent it from rewriting the first, either one of these will do:

RewriteCond $1 !^(backend\.php|index\.php|admin|assets|images|uploads|robots\.txt)
RewriteRule ^(.*)$ /index.php/$1 [L]

或

RewriteCond %{ENV:REDIRECT_STATUS} !200
RewriteCond $1 !^(index\.php|admin|assets|images|uploads|robots\.txt)
RewriteRule ^(.*)$ /index.php/$1 [L]

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