@foreach ($siswa as $d)
  <tr>
    <td class="text-center">
      <input type="checkbox" name="siswa_id[]" value="{{ $d->id }}">
    </td>
    <td class="text-center">{{ $d->nis }}</td>
    <td class="text-left">{{ $d->nama_siswa }}</td>
    <td class="text-center">{{ $d->kelas }}</td>
  </tr>
@endforeach