Problem_Ticket::displayTabContentForItem PHP Method

    static function displayTabContentForItem(CommonGLPI $item, $tabnum = 1, $withtemplate = 0)
    {
        switch ($item->getType()) {
            case 'Ticket':
                self::showForTicket($item);
                break;
            case 'Problem':
                self::showForProblem($item);
                break;
        }
        return true;
    }