php - Laravel 每月计数记录

Question

我想使用 Laravel 的 Chartjs 创建每月统计数据。

$monthly_uploaded_product = DB::table('author_product')
         ->select(DB::raw('count(id) as total'), DB::raw('MONTH(created_at) as month'))
         ->groupBy('month')
         ->get();

查询结果为:

[{"total":1,"month":10},{"total":17,"month":11}]

代码的输出应该像这样用 Javascript (Chartjs) 表示:

[0,0,0,0,0,0,0,0,0,1,17,0]

我已经编写了生成数组的代码，但错误 undefined offset :1:

$statistics_monthly_product = array();   
foreach (range(1, 12) as $month) {
    foreach ($monthly_uploaded_product as $key) {
        if ($statistics_monthly_product[$month] == $key->month){
            $statistics_monthly_product[$month] = $key->total;
        }else{
            $statistics_monthly_product[$month] = 0;
        }
    }
}

Answer 1

你可以尝试这样的事情:

$year = [0,0,0,0,0,0,0,0,0,0,0,0];//initialize all months to 0

foreach($monthly_uploaded_product as $key)
   $year[$key->month-1] = $key->total;//update each month with the total value
}