.htaccess 将子域重写到目录并将子域保留在 url 中

我需要使用 .htaccess 将子域重写为子目录，但将子域保留在 url 中，如下所示:

I need to rewrite a subdomain to a subdirectory using .htaccess but keep the subdomain in the url like this:

浏览器中访问的 url:sub1.domain.com

Visited url in browser: sub1.domain.com

提供的网址:sub.domain.com/sub1/

我尝试了以下

RewriteCond %{HTTP_HOST} ^subdomain.domain.com
RewriteRule ^(.*)$ http://subdomain.domain.com/subdomain/$1 [L,NC,QSA]

但这会导致无限循环.我知道通过 php 执行此操作会更容易，但是使用 .htaccess 是否有任何解决方案?

but this leads to an endless loop. I know that it would be easier to do this by php but is there any solution for this with using .htaccess?

您可以在文档根目录中使用此规则:

You can use this rule in document root:

RewriteCond %{HTTP_HOST} ^subdomain.domain.com$ [NC]
RewriteRule ^((?!sub1/).*)$ /sub1/$1 [L,NC]

说明:

NC: Ignore case
L: Last rule
RewriteCond %{HTTP_HOST} line makes sure that rule only executes for subdomain
(?!sub1/) is negative lookahead expression that means of request is not starting with /sub1/
RewriteRule ^((?!sub1/).*)$ /sub1/$1 [L,NC] rewrites current path to /sub1/<uri>