.htaccess Wildcard Subdomains

Question

I'm trying to implement a solution using .htaccess and wildcard subdomains so that

http://subdomain.example.com is mapped to http://example.com/index.php/accounts/subdomain/. My rules look something like:

RewriteCond %{HTTP_HOST} !www.example.com [NC]
RewriteCond %{HTTP_HOST} ^(www.)?([a-z0-9-]+).example.com [NC]
RewriteRule ^(.*/) /index.php [PT,L]

Which works, but disregards everything else. When I try appending anything to the rule e.g:

RewriteRule ^(.*/) /index.php/hello [PT,L]

I get a 500 internal server error. How do I get this working?

Answer 1

You probably need to exclude the index.php from your rule:

RewriteCond %{HTTP_HOST} !^www.example.com$ [NC]
RewriteCond %{HTTP_HOST} ^(www.)?([a-z0-9-]+).example.com$ [NC]
RewriteRule !^index.php($|/) index.php/accounts/%2%{REQUEST_URI} [PT,L]