If I inherit from the parent class, how will this method work?

Question

PHP

public function current_user(): User{
       if (is_null($this->current_user)){
           /**@var User $record*/
           $record = User::find()->where(['id'=>$this->user_id])->one();
           if ($record){
               $this->current_user = $record;
           }else{
               $this->current_user = new User;
           }
       }
       return $this->current_user;
    }

The question is: if I call this method in the child class, will it take #this from the parent class or will it consider this as the child class? (I do not override this method in the child class)

Answer 1

When inheriting, the child method replaces the parent one, you can refer to the parent implementation through parent. More details: https://www.php.net/manual/ru/language.oop5.inheri...
And in general, read the entire section on php.net for at least a basic understanding of how classes and OOP work in php. Will remove a lot of questions)

The question is: if I call this method in the child class, will it take #this from the parent class or will it consider this as the child class? (I do not override this method in the child class)

In a child class, this points to the parent + current child combination. That is, you can call parent classes from a child, use parent variables, but everything is within visibility (public, protected). Private methods and variables are only available in the current class (parent or child)