//関連商品情報表示
$this->arrRecommend = $this->lfPreGetRecommendProducts($product_id);

//関連商品（追加分）情報表示
$this->arrRecommend2 = $this->lfPreGetRecommendProducts2($product_id);

    function lfPreGetRecommendProducts2($product_id) {
        $objProduct = new SC_Product_Ex();
        $objQuery =& SC_Query_Ex::getSingletonInstance();

        $objQuery->setOrder('rank DESC');
        $arrRecommendData = $objQuery->select('recommend_product_id, comment', 'dtb_recommend_products_2 as t1 left join dtb_products as t2 on t1.recommend_product_id = t2.product_id', 't1.product_id = ? and t2.del_flg = 0 and t2.status = 1', array($product_id));