How to get Netscape to cache PHP3 files?

[Anon]

I have a script that I NEED netscape to cache. Since PHP3 generally doesn't put in any cache validators, Netscape doesn't cache any of my php scripts.

I've gotten IE to cache my scripts by adding a last modified header. However the solution doesn't work in Netscape. I've played around with the header information using the Header() function, and nothing works for netscape.

Does anybody know exactly WHAT header information Netscape needs to cache a page NO MATTER what?

Thanks

Tim

[Anon]

Try adding a valid Expires-header; remember that it has to be in GMT and has to have a special format, like:
Expires: Tue, 15 Aug 2000 08:15:22 GMT

If that doesn't help, try skipping both the last-modified and the expires headers.