如何在Laravel查询中按键加上持续时间？

Question

我正在尝试获取数据库中每个客户端模型的约会模型小时的摘要。我希望看到客户总结的总数。我在某个地方出错了，因为我的代码目前总计各个约会的所有时间并返回。我希望客户能够看到它。这是代码：

        $clientHours = Appointment::with('client')
        ->whereBetween('ends_at', [$from, $to])
        ->get();            

        $results= [];           
        foreach($clientHours as $collection)
        {   
        $duration = [];     
                $date1      = $collection->starts_at; 
                $date2      = $collection->ends_at;                     
                $start      = Carbon::parse($date1);
                $end        = Carbon::parse($date2);
                $length     = $start->diffInMinutes($end)/60;
                $duration[] = $length;  
                $totalHours = array_sum($duration); 


            $results [] = [
            'name'          => $collection->client->name
            'totalHours'    => $totalHours,
            'charge'        => $collection->client->contract_rate * $totalHours,
            ];
        }


        return view('admin')

Answer 1

你可以在get（）调用后对集合使用sum（）方法。