Help with basic .htaccess mod_rewrite

Question

I am currently interpreting sub-domain wild-cards with php and i would like to handle them with .htaccess, user profiles will be accessed at http://username.mysite.com/ (or for

Answer 1

Try:

 RewriteRule ^error/(.*) index.php?error=$1 [L]
 RewriteRule ^file/(.*) index.php?file=$1 [L]

... for the last two.