您[在这一行有更多的起点：-
->where([['DATE(shipping_table.sold_date)', '=',$date, ['shipping_table.shipping_status', '=' ,1]])
它必须是（DB::raw()用于MysqL functions）：-
$date = date("Y-m-d", strtotime($request->datepicker2));
$products = DB::table('shipping_table')
->select('products.product_name', 'products.price', DB::raw("Sum(shipping_products.quantity) as qtysold"), 'shipping_table.sold_date')
->join('shipping_products','shipping_table.shipping_id', '=', 'shipping_products.shipping_id')
->join('products','products.product_id', '=', 'shipping_products.product_id')
->where([[DB::raw("date(shipping_table.sold_date)"),$date], ['shipping_table.shipping_status', '=' ,1]])
->groupBy('products.product_name')
->paginate(8);
笔记：-
关于得到的错误（Syntax error or access violation: 1055），请检查此答案并相应地执行以下操作：
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