php - Laravel pluck, groupBy 自定义日期格式

Question

使用 pluck 时无法格式化 created_at。

VisitorsStatistic::where('landing_page_id', $this->landing_page->id)
         ->select('created_at', DB::raw('count(*) as visitors'))
         ->whereMonth('created_at', '>=', $this->start_month)
         ->whereMonth('created_at', '<=', $this->end_month)
         ->orderBy('created_at')
         ->groupBy('created_at')
         ->pluck('visitors','created_at')
         ->all();

我通常使用下面的代码按日期分组，但它不适用于 pluck 并给出 strpos() 错误。

         //->groupBy(function($val) {
         //    return Carbon::parse($val->created_at)->format('d/m');
         //})

使用 pluck 时有没有办法格式化日期 created_at ？

Answer 1

试一试：

VisitorsStatistic::where('landing_page_id', $this->landing_page->id)
         ->select(\DB::raw("DATE_FORMAT(created_at, '%Y-%m-%d') AS created_at"), \DB::raw('count(*) as visitors'))
         ->whereMonth('created_at', '>=', $this->start_month)
         ->whereMonth('created_at', '<=', $this->end_month)
         ->orderBy('created_at')
         ->groupBy('created_at')
         ->pluck('visitors','created_at')
         ->all();

日期的格式在DATE_FORMAT()函数中。