Will my php redirects work?

[tomhumf]

Hi,

I recently moved a load of pages, I used php redirects on the old pages but ommited the line : header("HTTP/1.1 301 Moved Permanently");

They are working, but I'm concerned that the old pages might not be removed from the search engine indexes. It's been a week now and the old and new pages are indexed, which I'm worried might have implications for duplicate content...

Should I add the moved permanently line to all my redirects, or wait and hope the old pages dissapear?

Thanks

Tom

[enigma1]

It is more efficient to have the 301 redirect header in place. When the redirect header is missing a 302 is implied, in other words "temporary redirect"