.htaccess subdomain url rewrite

Question

I would like to rewrite an url, but I always do not get any adequate results.

I would like the url http://something.domain.com/index.php?arguments... to actually v

Answer 1

You can use this code in your DOCUMENT_ROOT/.htaccess file of something domain:

RewriteEngine On

RewriteCond %{HTTP_HOST} ^([^.]+)\.(domain\.com)$ [NC]
RewriteRule ^(index\.php)$ http://%2/$1?username=%1 [L,QSA,NC,R]