Learn Php 7:: Object Oriented Modular Programmin...

: Hiding complex implementation details and showing only the necessary features of an object to the user.

OOP is a paradigm that bundles data (variables) and behavior (functions) into cohesive units called . In PHP 7, this is structured using four fundamental "pillars":

: Enabling different classes to be treated as instances of the same parent class through a uniform interface, allowing for flexible and adaptable applications. Learn Object Oriented PHP - 3 Hour PHP OOP Course

: Bundling data and the methods that operate on that data within a single object, often restricting direct access to prevent unintended interference.

This guide outlines the core concepts of , focusing on building secure, scalable, and maintainable web applications by organizing code into independent, reusable "tiers" or "modules" . Core Concepts of Object-Oriented Programming (OOP)