Question

My Class is independant from another Class.
Inside my Class, a function is doing the same but refined job as a function in another Class. Can I use parent:: function_in_another_class() and get my function join that parent funciton’s job flow?

Answer 1

No.

In PHP you can only extend from none or one class. As you write both classes are independent to each other, there is no information where to find the one or the other class.

But what you’re looking for is probably this:

class A
{
    function myFunction() {}
}

class B
{
    private $a;
    public function __construct(A $a)
    {
        $this->a = $a;
    }
    public function myFunction()
    {
        $this->a->myFunction();
    }
}