mod_rewrite for subdomain (php site)

[forum11]

I am using this rule for main site and subdomain (both have their own .htaccess)

RewriteRule ^(.*)-(.*).html /moredetails.php?pid=$2

and it is working fine for both (www.example.com and subdomain.example.com)
but when I access subdomain as www.example.com/subdomain then the htacess inside subdomain folder is not working and it executing root .htaccess

Can anyone tell exactly what the problem is and how can it be sorted out?

Regards

[Dan Grossman]

Easy solution. Only access it through the subdomain, and put a robots.txt in place to make sure search engines never try to crawl /subdomain even if someone finds and links to it.

[forum11]

But I need both to be working (sub.example.com and example.com/sub)

[Dan Grossman]

Then you need to modify the .htaccess file in the root to not match URLs beginning with /subdomain. You can either make that part of the pattern or add a RewriteCond.

[forum11]

Can you please tell me that RewriteCond?? I am not good at mod_rewrite.

Thanks