[RESOLVED] array of sessions

[zzz]

I have a page where I set a few vars into sessions.

$_SESSION['a'] = 'a';
$_SESSION['b'] = 'b';
$_SESSION['c'] = 'c';

At some point I need to kill all those vars, but not all the session vars I use on the site. Can I do something like:

$_SESSION['page1']['a'] = 'a';
$_SESSION['page1']['b'] = 'b';
$_SESSION['page1']['c'] = 'c';

and then kill them by

unset($_SESSION['page1']);

Instead of going one by one.

[djjjozsi]

i think yes ,

print "<pre>";
print "before: ";
print_r( $_SESSION['page1']);
unset($_SESSION['page1']);
print "<br />";
print "after ";
print_r( $_SESSION['page1']);
print "</pre>";

[bradgrafelman]

You can use $_SESSION just like you would any other array (with the added benefit that it's a superglobal, of course), so yes, you can unset one element of a multidimensional array and all child elements will be erased as well.

[NogDog]

Just do not unset $SESSION itself, as that screws up its special "super-global" nature.

// OK
unset($_SESSION['some_index']);

// not OK:
unset($_SESSION);

// OK to clear entire session array:
$_SESSION = array();