Tutorial singleton pattern part 2 php

Tutorial singleton pattern part 3 php

Tutorial singleton pattern part 4 php

Singleton Pattern Explained

Simplest Implementation of Singleton Design Pattern - Session 2 - ChiPi Technologies

Singleton Design Pattern Session 6-Simplest way of implementing Thread Safe Singleton Design Pattern

Singleton Pattern

Understanding the Singleton Design Pattern: Why It Can Be an Anti-Pattern and What to Use Instead