SOLID Principles in PHP | SOLID Principles in PHP | Episode 01

Interface Segregation Principle in PHP | SOLID Principles in PHP | Episode 05

Dependency Inversion Principle in PHP | SOLID Principles in PHP | Episode 06

Dependency Inversion: What, Why & How? | By Example

Dependency Inversion Principle Explained | SOLID Principles Made Simple with Real Examples

Dependency Inversion Principle Explained with Real Examples in Python | Low Level Design - Lesson 8

PHP Design Patterns: Introduction

Decorator Pattern in PHP | Design Patterns in PHP | Episode 09

Strategy Pattern in PHP | Design Patterns in PHP | Episode 01