.htaccess - Redirect subdomain to folder

Question

This question has probably been asked for over a thousand times, but I've tried so many scripts, and googled so long while finding nothing, I thought, let's just ask.

I simply want m.daltonempire.nl to be redirected to daltonempire.nl/m/ without the user seeing the URL change.

So if m.daltonempire.nl/hello.php is requested, I want the user to keep seeing this URL, while the page given is actually daltonempire.nl/m/hello.php.

Note: I do not want www., so simply http://m.daltonempire.nl

Thanks in advance,

Isaiah v. Hunen

Answer 1

Add this to your .htaccess in your web root / directory

RewriteEngine on
RewriteBase /

RewriteCond %{HTTP_HOST} ^m\.daltonempire\.nl$ [NC]
RewriteCond %{REQUEST_URI} !^/m(/|$) [NC]
RewriteCond %{REQUEST_FILENAME} !-d # not a dir
RewriteCond %{REQUEST_FILENAME} !-f # not a file
RewriteRule ^(.*)$ m/$1 [L]

The %{REQUEST_FILENAME} conditions would let you access /exists.php and not rewrite it to /m/exists.php. Remove those two if you want to rewrite even if that may potentially override existing files and directories.

Answer 2

Try this example:

RewriteCond %{HTTP_HOST} ^([^/.]+)\.example\.com$ 
RewriteCond %1 !^(www|ftp|mail)$ [NC]
RewriteRule (.+)$ "http://example.com/%1" [L,P]

Any requests http://test.example.com will be mapped to http://example.com/test/...

Try googling dynamic subdomain with php and htaccess to get better search results.