session destroy

[yllai]

Hi,

I have request user login to my page. At this time, session_start();

After login successful, user have to fill in the form.

After click submit the form, they will be linked to a thank you page.

Can I restrict user click 'Back' (at top of browser) to the form page? I have tried session_destroy() at thank you page, but it no work.

Anyone can help? Pls advice.

[eelixduppy]

Trying unsetting your session variables with unset [php.net].