Laravel中多选框值存储到数据库的正确姿势

public function create(array $data)
{
    return User::create([
        // 错误示例：试图在数组上调用implode方法，且get()方法不适用于普通数组
        'hobbies' => $data->implode([',', (array) $data->get('hobbies')]),
     ]);
}

use Illuminate\Http\Request;
use App\Models\User; // 假设您的用户模型在App\Models\User

class RegistrationController extends Controller
{
    public function postRegistration(Request $request)
    {
        // 获取所有请求数据
        $data = $request->all();

        // 调用辅助方法来创建用户
        $this->create($data);

        return redirect("login")->withSuccess('Great! please login.');
    }

    public function create(array $data)
    {
        // 确保 'hobbies' 键存在且是数组，如果不存在或不是数组，则默认为空数组
        $hobbies = isset($data['hobbies']) && is_array($data['hobbies']) ? $data['hobbies'] : [];

        return User::create([
            'name' => $data['name'], // 假设还有其他字段
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
            'hobbies' => implode(',', $hobbies), // 正确使用implode函数
        ]);
    }
}

<form method="POST" action="/register">
    @csrf

    <div class="form-group row">
        <label for="name" class="col-md-4 col-form-label text-md-right">Name</label>
        <div class="col-md-6">
            <input id="name" type="text" class="form-control @error('name') is-invalid @enderror" name="name" value="{{ old('name') }}" required autocomplete="name" autofocus>
            @error('name')
                <span class="invalid-feedback" role="alert">
                    <strong>{{ $message }}</strong>
                </span>
            @enderror
        </div>
    </div>

    <div class="form-group row">
        <label for="email" class="col-md-4 col-form-label text-md-right">E-Mail Address</label>
        <div class="col-md-6">
            <input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ old('email') }}" required autocomplete="email">
            @error('email')
                <span class="invalid-feedback" role="alert">
                    <strong>{{ $message }}</strong>
                </span>
            @enderror
        </div>
    </div>

    <div class="form-group row">
        <label for="password" class="col-md-4 col-form-label text-md-right">Password</label>
        <div class="col-md-6">
            <input id="password" type="password" class="form-control @error('password') is-invalid @enderror" name="password" required autocomplete="new-password">
            @error('password')
                <span class="invalid-feedback" role="alert">
                    <strong>{{ $message }}</strong>
                </span>
            @enderror
        </div>
    </div>

    <div class="form-group row">
        <label for="hobbies" class="col-md-4 col-form-label text-md-right">Hobbies</label>
        <div class="col-md-6">
            <input type="checkbox" name="hobbies[]" value="Readbooks" {{ in_array('Readbooks', old('hobbies', [])) ? 'checked' : '' }}/> Readbooks
            <input type="checkbox" name="hobbies[]" value="Games" {{ in_array('Games', old('hobbies', [])) ? 'checked' : '' }}/> Games
            <input type="checkbox" name="hobbies[]" value="Music" {{ in_array('Music', old('hobbies', [])) ? 'checked' : '' }}/> Music
            @if ($errors->has('hobbies'))
                <span class="text-danger">{{ $errors->first('hobbies') }}</span>
            @endif
        </div>
    </div>

    <div class="form-group row mb-0">
        <div class="col-md-6 offset-md-4">
            <button type="submit" class="btn btn-primary">
                Register
            </button>
        </div>
    </div>
</form>