php_laravel_laracasts/app/Http/Requests/RegistrationForm.php

<?php

namespace App\Http\Requests;

use App\User;
use Illuminate\Foundation\Http\FormRequest;

class RegistrationForm extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Custom code, not part of standard forms/requests.
     *
     * @return User
     */
    public function persist(): User
    {
        $user = User::create($this->only(['name', 'email', 'password']));
        return $user;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'name' => 'required',
            'email' => 'required|email',
            // "confirmed" uses <field>_confirmation.
            'password' => 'required|confirmed',
        ];
    }
}