session - "Webpage has expired" $_SESSIONS in PHP -


In my web-application I am using $ _ sessions , but sometimes , When the user gets the backspace key:

The webpage has expired

messages.

Why is this happening? What can I do to avoid this?

This is also done with the cache control instructions browser. Learn more about cache settings to learn more.

:

Recap

To prevent warnings from "Page expired", set session.cache_limiter in Private and make sure that the POST method Using any form submits to an intermediate processing page that redirects the user to a different URL.


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