In order to disable browser cache on dynamically generated pages, PHP uses the header method below:
header("Expires: Date_in _the_past");
Over the years most people have been using the following:
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
If you don’t believe just do this Google Search.
There are only a couple of problems however:
FIRST PROBLEM : Jul 26 1997 fell on a Saturday not on a Monday.
SECOND PROBLEM : Why does it have to be that date?
There are plenty more dates to choose from anyway, so why is that one (Mon, 26 Jul 1997 ) or should we say (Sat, 26 Jul 1997) so special?
If you have any ideas, please drop me a comment.