Apache .htaccess重写：子域作为GET参数，文件路径保持不变

我想使用htaccess将子域重写为get参数，但保留域后的所有内容，并将参数添加到末尾或url

预期结果：

http://mpmain.example.com/          -> index.php
http://www.example.com/             -> index.php
http://hello.example.com/           -> index.php?subdomain=hello
http://whatever.example.com/        -> index.php?subdomain=whatever
http://whatever.example.com/index.php?page=login -> index.php?page=login&subdomain=whatever
http://whatever.example.com/index.php?page=about&action=help -> index.php?page=about&action=help&subdomain=whatever

使用我现在拥有的.htaccess，我可以通过以下代码实现到参数index.php？subdomain=的子域映射

RewriteEngine On

# Parse the subdomain as a variable we can access in PHP, and
# run the main index.php script
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{HTTP_HOST}        !^www
RewriteCond %{HTTP_HOST}        !^mpmain
RewriteCond %{HTTP_HOST}         ^([^\.]+)\.([^\.]+)\.([^\.]+)$
RewriteRule ^(.*)$ /$1?subdomain=%1

在下面添加了第二次重写，但这一次不起作用。如何调整它以获得所需的结果

# Map all requests to the 'path' get variable in index.php
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?subdomain=$1 [L,QSA]

---

我从

中获取了代码。您可以在根目录中使用此代码。htaccess:

DirectoryIndex index.php
RewriteEngine On

# Parse the subdomain as a variable we can access in PHP, and
# run the main index.php script    
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{HTTP_HOST} !^(?:www|mpmain) [NC]
RewriteCond %{HTTP_HOST} ^([^.]+)\.[^.]+\.[^.]+$
RewriteRule ^(.*)$ $1?subdomain=%1 [L,QSA]

---

感谢您的努力，但是这个似乎无法处理&subdomain=which part.Nada。如果我浏览到whatever.example.com，它不会被重写为whatever.example.com/？subdomain=whater，所以看起来它在那里出错了。这是由于RewriteCond%{REQUEST_FILENAME}造成的-f条件。现在试试，谢谢！现在可以工作了：现在我终于可以享受我的共享用户数据库和共享代码结构了，这是唯一的阻碍。现在开始一些bash编程。