Laravel：获取刀片中单选按钮的值，并使用AuthController.php将其放入数据库中

So have an issue with putting the values of my radiobuttons in my database with AuthController. I want to simply let the user choose between male, female and other (values 1,2 and 9) in the Laravel registration form (register.blade.php). But whatever I try my value keeps returning 0 in my database.

this is my blade:

{{ Form::radio('sex', 1, true, ['class' => 'grid__offset-bp1-2']) }}male<br>
{{ Form::radio('sex', 2, false, ['class' => 'grid__offset-bp1-2']) }}female<br>
{{ Form::radio('sex', 9, false, ['class' => 'grid__offset-bp1-2']) }}other

and this is my AuthController.php:

protected function create(array $data)
    {
        return User::create([
            'name_first' => $data['name_first'],
            'name_second' => $data['name_second'],
            'name_last' => $data['name_last'],

            'sex' => $data['sex'],

            'email' => $data['email'],
            'password' => bcrypt($data['password']),
            //'birthday' => $data['birthday'],
            'phone' => $data['phone']
        ]);
    }