make time for view page !

[amis]

I make online Exams system with php and mysql

I want to make visitor to see page of exam for certain time for example 30min

and after 30 min (page die of redirect to main page)

[duncanmcdougall]

You could [redirect with JavaScript](http://ntt.cc/2008/01/21/5-ways-to-redirect-url-with-javascript.html “redirect with JavaScript”) but that may be only half a solution as you can always turn JS off.

If your exams consist of multiple short questions you could store exam start time in a session and show questions one at a time, maybe using AJAX or simply separate pages. On the back end at each question request you check the time elapsed and die if expired. Combine this with a time left timer and a JavaScript redirect to redirect mid way through questions. If JS is off and they submit a question after 30 minutes has passed then you simply discard the answer to that single question. I hope that helps.

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