Unique URL Generation

[Anon]

I've got a series of forms that together comprise a signup process. The problem I have is that because each page in the process is a form, if a user hits the back button because they want to change something, they get the old "Warning: Page has Expired" message from the browser. This freaks out some users and most people don't know they can just hit F5 to refresh and "repost form data".

Sites like Amazon get around this by generating a unique URL for each page, so when a user hits "Back" they go back and it's no problem. My question is: How do I do this with PHP? Any ideas?

Thanks in advance.

[Anon]

I encountered a similar problem, and had to resort to storing user entries in cookie files.

Sorry this is not much help, but I'll be looking forward to any solution someone might have.

Richie.

geocities.com/akindele/