subdomain with the same Document Root

Hi!
can I modify my Document Root of my subdomain m.mydomain.com to the same document root to www.mydomain.com?

I’ve read http://forums.interworx.com/threads/3351-Site-subdomain-paths?p=25090#post25090

this one isn’t create another domain, if share the document root with subdomain , what can I do?

Hi shingfx

Not too sure why you want to do that, but you can set the subdomain with doc root of main domain, just simply give the subdomain root as main doc root.

Hope that helps

Many thanks

John