Php-guide.7z -

A class should not be forced to implement methods it does not use.

Depend on abstractions (interfaces), not concrete implementations. php-guide.7z

Classes should be open for extension but closed for modification. A class should not be forced to implement

A class should have one, and only one, reason to change. A class should have one, and only one, reason to change

A high-level OrderManager should depend on a generic PaymentProcessorInterface rather than a specific PayPalPayment class. 📦 Understanding the .7z Context

The acronym represents five essential rules for high-quality software architecture: S: Single Responsibility Principle (SRP)

The request for a "solid story" for php-guide.7z refers to the of Object-Oriented Programming (OOP) applied to PHP development. These five design principles—Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion—form the "story" or fundamental logic for writing maintainable, scalable, and professional PHP code. 🧩 The SOLID Framework for PHP