Hello,
I'm trying to build the first page to a database driven website. The first
thing I'm trying to do is detect if cookies are enabled on the users
browser, and then, via a header(location: mysite.php), redirect the user to
either a cookie supported page, or cookie unsupported page. I will use
sessions, in some form or another on each.
My concern is that this first page, or any following page, not be cached.
In the #php channel, it was said, or I understood from what was said, that
by default, php pages aren't cached. It was also mentioned that I should
make each url unique by using time() or uid of some kind. In the php
manual, under Header(), it listed four ways to disable caching. they are:
header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always
modified
header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header ("Pragma: no-cache"); // HTTP/1.0
Should I be concerned about page caching? If so, should I use one of the
header() statements, a combination of header() statements? Can I use a
combination of header() statements? The first page can't have a unique
url. The following one would be unique by use of sessions I would think,
but that may not keep them from being cached, would it?
Any direction would be of great help to me.
Thanks
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