php - Redirect to subdirectory only if not only in that subdirectory -

i facing (probably) quite simple problem plain old php application. have website simple directory structure:

www.domain.com   /blog   /some_subdirectory   /some_other_subdirectory

i redirect user /blog directory everytime visits folder/any file in application except except if in /blog directory.

i have come following snippet inside .htaccess file:

redirect 302 / http://www.domain.com/blog

but of course redirect if inside /blog directory, causing infinite loop of redirects deeper /blog directories don't exist.

how can exclude /blog directory redirect statement?

use mod_rewrite instead because can create negative condition:

rewriteengine on rewritecond %{request_uri} !^/blog rewriterule ^(.*)$ /blog/$1 [l,r]

this, of course, changes what's in browser's url address bar. if don't want bar change, remove ,r flag square brackets.

Kiastu