Custom Result Objects & Setter

Hi, I started to use CI4 three days ago and today I'm facing a problem with "Custom Result Objects". Here is the class of my custom object :

PHP Code:

class Transaction
{
    protected int $id;
    protected string $name;
    protected float $amount;

    public function __get($key)
    {
        if (property_exists($this, $key)) {
            return $this->{$key};
        }
    }

    public function __set($key, $value)
    {
        if (property_exists($this, $key)) {
            $this->{$key} = $value;
        }
    }
} 


The problem is when I'm using the function "getCustomResultObject" the "__set" method is never called, attributes are directly updated. Indeed, I tried to modify the setter to update my attributes using the $key & $value variables to do some operations, but the setter is never called. That is strange because I saw in the documentation :

The object will have all values returned from the database set as properties. If these have been declared and are non-public then you should provide a __set() method to allow them to be set.

And indeed if I remove the "__set" method, I get a error message "Cannot access protected property App\Entities\Transaction::$name". So the __set method is necessary to update the "protected" attributes, but the method is never used. So is it a bug, or I missed something ?

Thanks for your help.

Why do you think __set() is not called?

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

If you have "protected $name" properties declared, they are automatically filled with values. 
When there is no property, __set() is executed. BUT, you re-check the declaration of the property (they are already filled in). property_exists() is unnecessary.

PHP Code:

// Class
class Notify {
    protected $id, $user_id, $title, $is_read;

    public function __set($name, $value)
    {
        $this->{$name} = $value;

        return $this;
    }
}
// Select result
$notify = $model->builder()->limit(1)->get()->getCustomResultObject(Notify::class);
// Output
array:1 [▼
  0 => App\Controllers\Notify {#199 ▼
    #id: "5"
    #user_id: "1"
    #title: "New Message"
    #is_read: "yes"
    +"body": "New post created!"
    +"created_at": "2023-11-01 20:18:43"
  }
] 


If you have "protected $name" properties declared, they are automatically filled with values. 

What do you mean by automatically? How?
See https://3v4l.org/FZSap

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

See https://www.php.net/manual/en/mysqli-res...object.php
Mysqli creates an object a little differently. As Reflection?
Props id, user_id, title, is_read not calling __set(). body, created_at run __set(). What did I say wrong?

PHP Code:

    // Setter
    public function __set($name, $value)
    {
        echo $name . PHP_EOL;

        $this->{$name} = $value;

        return $this;
    }
    
    // Contains row: id, user_id, title, is_read, body, created_at
    $notify = model(NotificationModel::class)->builder()->limit(1)->get()->getCustomResultObject(Notify::class);

    // Output
    body created_at

 array:1 [▼
  0 => App\Controllers\Notify {#199 ▼
    #id: "5"
    #user_id: "1"
    #title: "New Message"
    #is_read: "yes"
    +"body": "New post created!"
    +"created_at": "2023-11-01 20:18:43"
  }
] 


Thanks guys