public function unsetVariable($name)
    {
        $retval = false;

        if (array_key_exists($name, $_SESSION)) {
            unset($_SESSION[$name]);
            $retval = true;
        }

        return $retval;
    }
public function unsetVariable($name)
    {
        $retval = false;

        if (array_key_exists($name, $_SESSION)) {
            unset($_SESSION[$name]);
            $retval = true;
        }

        return $retval;
    }
public function unsetVariable ( $ name ) { $ retval = false ; if ( array_key_exists ( $ name , $ _SESSION ) ) { unset ( $ _SESSION [ $ name ] ) ; $ retval = true ; } return $ retval ; }
Remove a value from the Session storage.
@param string $name Storage name to remove
@return boolean Returns true if the value was removed.
Remove a value from the Session storage .