When using sessions, which you might want to do, PHP automatically sends
header's that tell the user's browser not to bookmark the page.
The reason they can click the back button and see the page is because their
browser is caching the page. If they press the Refresh key they won't be
able to see
Hi All,
I'm in trouble to authenticate each user (using a database).
When the user sucesfully login on your area the php script send a cookie,
and every php script reads this cookie. So when the user log ou the php
script expires the cookie and then the user cannot bookmark the page and
turn back
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