Someone

    public function getInstance()
    {
        $returnValue = null;

        // section .:0000000000000C20 begin

                        if (!isset (self :: $m_productDAO))
                        self :: $m_productDAO = new ProductDAO();
                $returnValue = self :: $m_productDAO;


        // section .:0000000000000C20 end

        return $returnValue;
    }