Question

Possible Duplicate:
404 header – HTTP 1.0 or 1.1?

Should you use

header( "HTTP/1.0 404 Not Found", true, 404 );

instead of

header( "HTTP/1.1 404 Not Found", true, 404 );

when the user agent uses HTTP/1.0? That is, is it good to reply with the same HTTP version?

Btw, I’m using it to claim that a page doesn’t exist to users currently not logged in. I understand that it is different versions and that HTTP/1.1 has different functions.

Answer 1

If you don’t want to distinguish between 1.0 and 1.1 and want to send a static header, I guess

header( "HTTP/1.0 404 Not Found", true, 404 );

is the safe way to do it – every client speaks HTTP/1.0.

But I also expect that no client at all checks the http version in case of a 404. At least, I never experienced problems with the http version…