session destroy

[jimfog]

Do you think that session unset and session destroy can exist both of them in the same script? I mean, is there any rule that says, that I must have a page where I first unset the session and a 2nd page thatI destroy it?

[rahultailwal]

Somewhere in your application you want to delete some particular session variable but don't want to sign out from your application. Then you will use session_unset to unset a particular session variable. And when we log out from our application then we delete all the session data just using session_destroy().

[jimfog]

Somewhere in your application you want to delete some particular session variable but don't want to sign out from your application. Then you will use session_unset to unset a particular session variable. And when we log out from our application then we delete all the session data just using session_destroy().

Can you give me a more practical example of the above scenario-it was clear but I would like to have some example. Thanks

[justsomeguy]

session_unset will remove all session variables. If you want to remove a particular one just unset that one (unset($_SESSION['var'])). If you want to remove all session values you can also set $_SESSION to an empty array, $_SESSION = array(); Using session_destroy will remove all variables and also remove the session itself, if a user went to another page with session_start it would create a new session instead of using the old one.