I have a contact page
http://www.eightseven.net/contact.php
and people can fill this in and leave feedback. It works fine.
I do however generate a random number (perhaps I should change it to an image), which should be inserted into the field provided. If this number does not match then the form will not post.
The problem is that a user can press "browser back", then repost. How do I stop the page being cached?
I know another way around it - would be to asign the randon number to a session variable, print out the number, then destroy the variable...after printing it out....would this work?......
regards
S