What is the correct class to link several classes?

Question

PHP

There are several classes.

class Order - orders
class Information - information about the order
class Field - type and description of specific order information
Order::data - array of objects of class Information
Information::field_id - object of class Field (defines the type and description of class Information)
I want to make classes less dependent from each other. Can you tell me how to link objects? Separate class? Or there is a special pattern for linking objects as in JS Mediator.
Guide me on the right path!

Answer 1

There is no additional pattern, use an additional class