input[type=number] only storing 0 on database (Laravel 5.4)

Here is my code: my input type number

<input type="number" name="numberof" class="form-control" min="1" />

my controller

public function store(Request $request){
    $id = Auth::id();

    $userplan=UserPlan::create(['number' => $request['numberof'],
                                'user_id' => $id,
                                'plan_id' => $request['plan'],
                                'date_started' =>\Carbon\Carbon::now('Asia/Manila')
    ]);

It stores data, but the number(data) only stores 0 even if i incremented it.

via Chebli Mohamed