Implementation of Object-Oriented Programming in PHP | -Teein- | This article introduces object-oriented programming (OOP) in PHP. I will demonstrate how to use object-oriented concepts to write less code but create better programs. Wishing everyone good luck. The concept of object-oriented programming can vary depending on the perspective of each author. I would like to point out what should be included in an object-oriented language: data abstraction and information hiding, inheritance, and polymorphism.