proper http headers to send when switching blog from one domain to another

Question

Heya, Just wondering what the exact correct header is to send along when I redirect requests from one server (eg. abc.com) to another (eg. def.com/blog/).

I've got the redirects working right, but always get confused as to the exact header to send along with it.

Any help would be greatly appreciated. Thanks. Oliver

Answer 1

The header that indicates the new location is the Location header:

Location: http://def.com/blog/

If the change is permanent, you send a 301 response code (Permanent Redirect) so that clients may cache the forward.

Answer 2

In PHP you would do it like this:

header('HTTP/1.1 301 Moved Permanently');
header('Location: http://def.com/blog/');

You'd change "301 Moved Permanently" to "302 Found" if you are not sure it's permanent.