Read If-Modified-Since header in PHP CGI

Question

My PHP script depends on being able to read the value of the If-Modified-Since header (yes, I know how to do this).

It worked correctly when I used PHP as mod_php, but now that I've switched to suPHP (CGI), it appears Apache itself handles requests that contain this header, without forwarding them to PHP at all.

This is silly, because Apache can't possibly know when my dynamically generated CSS file (that is what my script makes) is changed. How can I discipline Apache in this regard?

Answer 1

It's located in the variable $_SERVER['HTTP_IF_MODIFIED_SINCE'].

I use it in a script, along with fun stuff like HTTP_IF_MODIFIED_SINCE. ;-)

Ciao!