Question

我想在laravel 5.3中使用json解析数据，但收到消息

未定义的属性：Illuminate \ Support \ Collection :: $ bulan

   public function chart()
    {
      $bulan = [];
      $jumlah = [];
      $data[] = DB::table('data_peminjaman')
                    ->select(DB::raw("DATE_FORMAT(created_at,'%Y') as tahun ,DATE_FORMAT(created_at,'%M') as bulan,COUNT(*) as jumlahdata, DATE_FORMAT(created_at,'%m') as b"))
                    ->groupBy(DB::raw("DATE_FORMAT(created_at,'%M'),DATE_FORMAT(created_at,'%Y'),DATE_FORMAT(created_at,'%m')"))
                    ->orderBy('tahun')
                    ->orderBy('b')
                    ->get();
      foreach ($data as $key ) {
        array_push($bulan, $key->bulan);
        array_push($jumlah, $key->jumlahdata);
      }
      // return view('chart',$data);
      return view('chart', compact('bulan', 'jumlah'));
    }

Answer 1

代替：

$data[] = DB::table('data_peminjaman')
                    ->select(DB::raw("DATE_FORMAT(created_at,'%Y') as tahun ,DATE_FORMAT(created_at,'%M') as bulan,COUNT(*) as jumlahdata, DATE_FORMAT(created_at,'%m') as b"))
                    ->groupBy(DB::raw("DATE_FORMAT(created_at,'%M'),DATE_FORMAT(created_at,'%Y'),DATE_FORMAT(created_at,'%m')"))
                    ->orderBy('tahun')
                    ->orderBy('b')
                    ->get();

您应该使用：

$data = DB::table('data_peminjaman')
                    ->select(DB::raw("DATE_FORMAT(created_at,'%Y') as tahun ,DATE_FORMAT(created_at,'%M') as bulan,COUNT(*) as jumlahdata, DATE_FORMAT(created_at,'%m') as b"))
                    ->groupBy(DB::raw("DATE_FORMAT(created_at,'%M'),DATE_FORMAT(created_at,'%Y'),DATE_FORMAT(created_at,'%m')"))
                    ->orderBy('tahun')
                    ->orderBy('b')
                    ->get();

这里唯一的区别是$data[]与$data。

也可以代替

：

foreach ($data as $key ) {
    array_push($bulan, $key->bulan);
    array_push($jumlah, $key->jumlahdata);
}

您可以使用pluck方法：

$bulan = $data->pluck('bulan');
$jumlah = $data->pluck('jumlahdata');

Laravel 5.3：数组推送错误

1 个答案: