InMemoryUserRepository.php

<?php

namespace App\Infrastucture\InMemory;

use App\Domain\User;
use App\Domain\UserRepositoryInterface;

class InMemoryUserRepository implements UserRepositoryInterface
{
    private User[] $users;
    
    public function save(User $user): void
    {
        $this->users[$user->getUserId()->getId()] = $user;
    }
}