[SOLVED] Kill session

[SirChick]

Is there a set way to kill the session (like when a user logs out) or do you just

set session = '' ;

[Wes1890]

Do:

 

unset($_SESSION['SESSION_NAME']);

 

OR

To unset all $_SESSION vars:

 

$_SESSION = array();

 

 

 

READ the PHP manual

http://php.net/

 

They have all your answers

[SirChick]

$_SESSION = array(); < would that kill all sessions relating to that user? Or all users ?

[Wes1890]

^ Sessions are run on a per-computer basis... so killing all the sessions, would only kill the sessions on the user (their computer) that logged out

 

 

everyone's sessions are seperate

 

[MadTechie]

http://uk3.php.net/manual/en/ref.session.php

[marcus]

Can't we just use session_destroy(); ?

[SirChick]

unset($_SESSION['SESSION_NAME']);

 

session_destroy();

 

 

 

If these 2 do the same what would be the better choice this is one of php's most confusing aspects theres more than one option for the same thing =/ there must be reasons ?

[marcus]

unset specifically kills the defined parameter, session destory destroys the whole session.

[Wes1890]

And if that was confusing ^ above.. here is an explanation

 

Lets say you have 3 sessions variables (right....)

 

$_SESSION['username'];

$_SESSION['password'];

$_SESSION['logged_in'];

 

If you want to remove 1 of the sessions, then do this:

unset($_SESSION['username']);

 

If you want to remove all of them (all 3 in this example), then do this:

session_destroy();

 

 

There ya go

[SirChick]

thankyou all