PHP What is OOP? OOP stands for Object-Oriented Programming. Procedural programming is about writing procedures or functions that perform operations on the data, while object-oriented programming is about creating objects that contain both data and functions.

As you embrace the dynamic nature of PHP and its object-oriented capabilities, you'll be well on your way to becoming an adept PHP developer capable of crafting elegant solutions to complex problems.

Before you can start to understand classic OOP software design patterns, you must first understand four key principles of OOP: Encapsulation, Abstraction, Inheritance, and Polymorphism. These principles apply not only to PHP OOP, but also to any object-oriented language.

Object-oriented programming (OOP) is a style of programming characterized by the identification of classes of objects closely linked with the methods (functions) with which they are associated. It also includes ideas of inheritance of attributes and methods.

There are three major pillars on which object-oriented programming relies: encapsulation, inheritance, and polymorphism. Phew! Even writing that makes my head spin. Students of programming hear these terms, and learn lots of ways to use them in their programming, but sometimes struggle to understand what is what.

OOP is a programming style that is based on creating objects that perform functions (called methods). Sort of like a modelling of the real world. You'll meet vocabulary such as Inheritance, Abstraction, e.t.c. PHP is a scripting language mostly used to design web pages.

PHP OOP Principles: Encapsulate: Hide data, control access, enhance security & maintainability. Inherit: Reuse code, model relationships, organize structure. Polymorph: Be flexible, adapt behavior, use different forms interchangeably. Abstract: Simplify complexity, hide details, focus on essentials.