如何从每月12个月的laravel中查询数据

Question

我只想从表产品中选择12个月和总价 年。首先，我声明变量starOfMonth和endOfMonth

$from = Carbon::now()->startOfYear()->format('Y-m-d');
$to = Carbon::now()->endOfYear()->format('Y-m-d');

然后我这样查询

$getTotal = Product::select(
                DB::raw('IFNULL(sum(price),0) as sums'),
                DB::raw('YEAR(date) year, MONTH(date) month')
            )->whereBetween('date', [$from, $to])->groupby('year','month')->get()->toArray();

显示输出如下所示。我已经掌握了正确的数据，但是如果没有数据总和显示为0，如何显示12个月

array:4 [▼
  0 => array:3 [▼
    "sums" => 90592.0
    "year" => 2018
    "month" => 6
  ]
  1 => array:3 [▼
    "sums" => 95600.0
    "year" => 2018
    "month" => 9
  ]
  2 => array:3 [▼
    "sums" => 12268424.0
    "year" => 2018
    "month" => 10
  ]
  3 => array:3 [▼
    "sums" => 14353968.0
    "year" => 2018
    "month" => 11
  ]