implementing DateTime immutability in PHP 8.1 while using Laravel's Eloquent
I'm sure I'm missing something obvious here, but I'm testing a new approach and I'm stuck on something that should probably be simple... I tried several approaches but none seem to work. I'm working with unexpected behavior with PHP's DateTime immutability feature while using Laravel's Eloquent ORM. I have a model that uses a `created_at` timestamp. When I try to modify this timestamp using the `modify` method on a DateTime object, it seems to be returning a new instance as expected, but when I save it back to the database, it does not reflect the changes. For example: ```php class User extends Model { protected $dates = ['created_at']; } $user = User::find(1); $dt = $user->created_at; $dt->modify('+1 day'); // This is supposed to create a new instance $user->created_at = $dt; // Reassigning back $user->save(); ``` After executing the above code, I check the database and the `created_at` column remains unchanged. I also tried using the `setTimestamp` method, but it resulted in the same behavior. The output of `var_dump($user->created_at)` before and after the save shows that the object references are different, but they don't reflect the expected value in the database. Also, there are no errors or exceptions thrown during this process. I verified that this is not an scenario with the database connection or migrations, as other fields in the model work fine. Could there be something I am overlooking regarding the DateTime handling in PHP 8.1 within Laravel? Any insights into how I can properly update DateTime attributes like this would be greatly appreciated. Any help would be greatly appreciated! My development environment is Ubuntu. Thanks in advance! What am I doing wrong? I'm coming from a different tech stack and learning Php. The project is a service built with Php. Any pointers in the right direction?