1、連表查詢：select * from goods left join shop on goods.shopid=shop.shopid;

DB::table('goods')
　　->leftJoin('shop', 'shop.shopid', '=', 'goods.shopid')
　　->get();

2、or查詢：select * from goods where (good_name like '%$keyWord%' or shop_name like '%$keyWord%' )

DB::table('goods')
　　->where
 
(function ($query) use ($keyWord) {
       $query->where('good_name', 'like', "%{$keyWord}%")->orWhere('shop_name', 'like', "%{$keyWord}%");
   })
　　->get();

3、查詢結果轉為陣列：toArray

DB::table('goods')->get()->toArray();