Hi Guys,
I read Matt's post and it took a while to click - guess I
am getting old. In the PHP code on the server add:
<?php
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
?>
Must be at the top of the file because any stray output to the browser will
kill it. You can find details here:
http://php.net/manual/en/function.header.php
I chased it because I suspect a caching problem with my code. As soon as I
get a whole class of students hitting the site strange things happen.
Cheers Paul
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