How to merge the return from one to one relationship - laravel

Question

I am using one to one relationship in laravel.
I have two models one is User and another is UserDetails.
The relationship is in User model
public function userDetails(){
return $this->hasOne(UserDetail::class);
}
I am calling the models something like that
public function index()
{
$user = User::find(2);
$user->user_details = $user->userDetails;
echo "<pre>"; print_r($user->toArray()); die;
}
But I am printing the return getting like this:-
Array
(
[id] => 2
[name] => Joney
[email] => joney#gmail.com
[email_verified_at] => 2019-04-29 02:01:03
[password] => dasDSADASDASDAS
[status] => Active
[remember_token] => DSADASd
[created_at] => 2019-04-29 00:00:00
[updated_at] => 2018-09-24 02:00:00
[user_details] => Array
(
[id] => 2
[user_id] => 2
[address] => Dhampur
[mobile_number] => 8006009195
[passport_number] => sasdadasd
[zip_code] => 201301
[created_at] => 2019-04-29 06:00:00
[updated_at] => 2019-04-29 02:00:00
)
)
So I want to get the return after merge the details into an object.
Thanks

Answer 1

try below code:
$user = User::with('userDetails')->find(2);
$user->user_detail_id = $user->userDetails->id;
$user->address = $user->userDetails->address;
$user->mobile_number = $user->userDetails->mobile_number;
$user->passport_number = $user->userDetails->passport_number;
$user->zip_code = $user->userDetails->zip_code;
unset($user->userDetails);
echo "<pre>"; print_r($user->toArray()); die;
Thanks.

Answer 2

This will happen automatically when you load the relationship. You can do this with either with() or load() depending on whether you have the model or not.
With your example above you would use with() as you're getting the user at the same time:
$user = User::with('userDetails')->find(2);
Alternatively, if you already had the User model then you would use load():
$user = User::find(2);
$user->load('userDetails');
Now, with all of that said, since you only have the one User model and not a collection, you don't need to worry about the (n+1) problem that eager loading solves so you can just access the property and Laravel will automatically getthe information for you e.g.:
$user = User::find(2);
$user->user_details;
Now if you do dd($user->toArray()) you will see that the information has been loaded.
Just an FYI, instead of using print_r() with die() and wrapping it in <pre> tags, you can use the dump() and dd() helper functions instead.

Answer 3

Have you try this
$user = User::find(2)
echo print-r ($user->userDetails);