laravel model create get id

1$user = User::create([
2    'username' => $data['username'] . ' ' . $data['username2'],
3    'mail' => $data['mail'],
4    'password' => bcrypt($data['password']),
5]);
6
7$userInfo = UserInformation::create([
8    'user_id' => $user->id,
9    'current_food' => $food,
10    'current_level' => $level,
11]);
12

1$data->save();
2$data->id;

1$id = $this->create($data)->id;

1$user = User::create([
2    'username' => $data['username'] . ' ' . $data['username2'],
3    'mail' => $data['mail'],
4    'password' => bcrypt($data['password']),
5]);
6
7$userInfo = UserInformation::create([
8    'user_id' => $user->id,
9    'current_food' => $food,
10    'current_level' => $level,
11]);