> Thanks for all the answers to this question but hitting the back button
> work, no authorization required to see the pages all over.
You need to get those pages to not be cached by the browser.
> Repost problem:
> I'm having a PHP based auth. It seems that unset($PHP_AUTH_USER) or
> unset($PHP_AUTH_PW) doesn't work.
The *BROWSER* re-sends those variables, so your unset() has no meaning on
the next page.
> Also, 401 Unauthorized header does not
> work also.
What you need to do is re-send the challenge headers, *ONLY* with a new
IE, keep track of what realm each user is in, and change it when you want
them to be logged out.
> Is there a way to logout and no back button or the user just have to close
> his browser in order to accomplish this?
Closing the browser is the best answer. You'll never get 100% no back
button caching on every single minor browser release.
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