session_unset
(PHP 4, PHP 5)
session_unset — Free all session variables
Description
void session_unset
( void
)
Return Values
No value is returned.
Notes
Note:
If $_SESSION (or $HTTP_SESSION_VARS
for PHP 4.0.6 or less) is used, use unset() to
unregister a session variable, i.e.
unset ($_SESSION['varname']);.
Caution
Do NOT unset the whole $_SESSION with
unset($_SESSION) as this will disable the registering
of session variables through the $_SESSION superglobal.