HTTP Status code for language redirect

Question

I wonder which HTTP Status code I should have to send in language redirects.

I have the following php code to redirect via HTTP headers to most important language in

Answer 1

Google uses 302 Found for redirection to localised page.

I think it is safe if Google uses it...

However, it's always good to check what selected response should do and what it is intended for and does it affect caching:

http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html