data refresh

[Anon]

hi, i have sorta a weird question.
i was wondering how do i make a form with php submission so whenever the user click on the back button, it will get a warning saying data has expired and that they have to refresh. the reason is i'm making a test script and wish not user to try on error. so after they submit the results to get their score, i wish they can not go back and change some answers from original test and submit again. i wish once they click on the back button, they will refresh which will make my test loading rearrange the test questions preventing trial on error. is there a way to make a back button load one of those "warning" popup that browsers have about data has expire that they have to refresh in order to get it? i know that i probably load the test question page with a form submission as well, that's ok.
thanks for the help!

[Anon]

This is also a problem of mine. There seem to be a lot talking about the http_post_vars and refresh but no one have any good solution.

There must be a way to clear the http_post_vars variable some way? I have tried without success, this method:

$http_post_varts[0] = “NULL”;
$http_post_varts[1] = “NULL”;

etc. after my data is sent to the mysql-server.

My script is for a guestbook and is not really a big problem. I can simply make a script checking so that I don’t store 2 mess that look the same.

[Anon]

so far IE is refreshing my data every time i click on back button since my data is somewhat dynamic coz i used array_rand.. i wonder if that's helping.. i will try on netscape

[dodozhang21]

netscape it not doing it ><