PHP::OOP_Mastery

Object-Oriented PHP — The 20% that drives 80% of results

class PHPDeveloper
extends YouRightNow {}

10 focused two-hour sessions. No fluff, no detours. Master the OOP patterns that appear in every serious PHP codebase — from Laravel to Symfony to your own projects.

10 Sessions
20h Content + Review
80% Real-world Coverage
1 Project at the End
Start Session 01 →

Your Progress

Course Tracker

Progress is saved in your browser. Green = done, purple = up next. Click any dot to jump to that session.

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All Sessions

The Curriculum

Each session is two hours of focused learning followed by a 15-minute review. Built around the concepts you'll actually use day-to-day.

Session 01 ○ Not started
Why OOP?
Classes & Objects
  • Procedural vs Object-Oriented thinking
  • Defining your first class
  • Instantiating objects with new
  • Real-world mental model: blueprints → buildings
2 hrs + 15 min review Open →
Session 02 ○ Not started
Properties, Methods
& Visibility
  • public / protected / private explained
  • Instance properties and methods
  • Getters and setters: when and why
  • Encapsulation as a design principle
2 hrs + 15 min review Open →
Session 03 ○ Not started
Constructor, $this
& Object Instantiation
  • The __construct() method
  • $this — the object talking to itself
  • Constructor promotion (PHP 8+)
  • Object cloning and value vs reference
2 hrs + 15 min review Open →
Session 04 ○ Not started
Inheritance &
Method Overriding
  • extends — building on existing classes
  • Overriding methods; parent::
  • The Liskov Substitution Principle
  • When not to use inheritance
2 hrs + 15 min review Open →
Session 05 ○ Not started
Abstract Classes
& Interfaces
  • abstract — enforcing a contract
  • interface — pure behaviour contracts
  • Choosing between abstract vs interface
  • Dependency Inversion in practice
2 hrs + 15 min review Open →
Session 06 ○ Not started
Static Methods,
Properties & Constants
  • static — class-level state
  • const vs static properties
  • Singleton and Factory patterns
  • self:: vs static:: (late static binding)
2 hrs + 15 min review Open →
Session 07 ○ Not started
Traits
  • What traits are and why PHP needs them
  • Conflict resolution: insteadof & as
  • Traits vs abstract classes vs interfaces
  • Real use-cases: Timestamps, SoftDelete
2 hrs + 15 min review Open →
Session 08 ○ Not started
Magic Methods
  • __toString(), __invoke()
  • __get() / __set() / __isset()
  • __call() and __callStatic()
  • Serialization: __sleep() / __wakeup()
2 hrs + 15 min review Open →
Session 09 ○ Not started
Namespaces &
Autoloading (PSR-4)
  • Why namespaces exist; use statements
  • PSR-4 autoloading standard
  • Composer autoload configuration
  • Organising a real project structure
2 hrs + 15 min review Open →
Session 10 ○ Not started
Practical Project:
Mini ORM / Repository
  • Repository pattern from scratch
  • QueryBuilder using method chaining
  • Applying every session's concepts live
  • Connecting to a real database
2 hrs + 15 min review Open →

Structure

How Each Session Works

🎯

2-Hour Core

Concepts, worked examples, and annotated code. Each session builds directly on the previous one.

⏱

Built-in Timer

Each session page has a countdown timer. Stay on track without watching the clock yourself.

📝

15-Min Review

Short quiz + key-point checklist at the end of every session. Consolidates what you just learned.

✅

Progress Saved

Mark sessions done, check off topics. Everything persists in your browser across visits.

Top 3 Reference Resources
  • 01

    PHP Manual — OOP Chapter Official

    The authoritative reference. Every class keyword, visibility modifier, and magic method documented with examples. Bookmark the OOP chapter — you'll return here constantly.

  • 02

    PHP: The Right Way — OOP Guide

    Community-curated best practices for modern PHP. The OOP section bridges the gap between raw syntax and real-world coding standards including PSR compliance.

  • 03

    DesignPatternsPHP Patterns

    All classic Gang-of-Four patterns implemented in clean modern PHP with UML diagrams. Essential reading before and after Session 10 when you build the mini ORM.