validate insert

validate insert

    public function placeStockProduct($dataArray) {
        print_r($dataArray);
        $count = $dataArray['count2'];
        $sql = "INSERT INTO `outlet_stock_check` (`outlet_name`, `outlet_id`, `product_name`, `product_id`, `qty`) VALUES ";
        $do = FALSE;
        for ($index = 0; $index < $count; $index++) {
            if (isset($dataArray['product_name_' . $index]) && !empty($dataArray['product_qty_' . $index])) {
                $sql.="('', '', '" . $dataArray['product_name_' . $index] . "', ''," . $dataArray['product_qty_' . $index] . ")";
                if (!$do) {
                    $do = TRUE;
                }
                if ($index+1 < $count) {
                    $sql.=",";
                }
            }
        }
        if ($do) {
            echo $sql;
//            $this->db->query($sql);
        }
    }