Parent Object in php

Question

is there a way to traverse an object to get the parent object data? With \"parent object\" I don\'t mean the parent class, but literally object. Here an example, in a javasc

Answer 1

Maybe it can be useful in some case: it doesn't bring parent object to ChildClass very early in constructor, but a one step later. It plays with ability to intercept non-existing method:

class ParentClass
{
    const CHILD_PROPERTY_NAME = 'child';
    public $data = 'Some data';

    public function
    __set($property_name, $property_value)
    {
        if ($property_name == self::CHILD_PROPERTY_NAME)
        {
            $property_value->set_parent_object($this);
        }
    }
}


class ChildClass
{
    private $parent_object = null;

    public function
    set_parent_object($object)
    {
        $this->parent_object = $object;
        echo $this->parent_object->data;
    }

}


$p = new ParentClass();
$p->child = new ChildClass();

This will output Some data