sessions issue

[irishgirl2004]

Hi,
When a user logs into my system, i assign their userid to a session variable

$_SESSION['userid'] = $myrow[0];
[code=php]


and then a user logs out, i do the following

[code=php]
$_SESSION['userid'] = '';
session_write_close();
[code=php]

so, when a user clicks on a link to a page they should only see when logged in, i do the following test


[code=php]
if (isset($_SESSION['userid']))
{
	header('Location: members.php3');	
}

[code=php]



but the logout does not seem to work for some reason? userid still seems to be set after running the logout script, any ideas? am i doing something silly?



thanks

[BIOSTALL]

use:

unset($_SESSION['userid']);

Instead of just just making the session variable equal to '' because even if its equal to '', the variable is still seen as being set.

Hope this helps

BIOSTALL

[irishgirl2004]

thanks for that, i got another function, to destory the session

session_destroy();

just in general, say a user does not logout, the session is still alive? are sessions purged after s certain amount of inactivity?

thanks

[BIOSTALL]

Well... if i'm understanding what your asking... sessions timeout after being idle for 15 minutes i think it is... this timeout length can be changed though i think in php.ini

BIOSTALL

[irishgirl2004]

thanks dude, your help is much appriciated... 🙂

[LoganK]

Sessions are also ended when the browser closes...