If a Bird class has a fly() method, a Penguin subclass shouldn't override it to throw an error, as this violates the expectation that all birds in the system can fly. I: Interface Segregation Principle (ISP)
The .7z extension indicates a compressed archive created with . In the context of a "PHP Guide," this archive likely contains: SOLID Principles in Laravel & PHP: A Practical Guide php-guide.7z
A high-level OrderManager should depend on a generic PaymentProcessorInterface rather than a specific PayPalPayment class. 📦 Understanding the .7z Context If a Bird class has a fly() method,
The acronym represents five essential rules for high-quality software architecture: S: Single Responsibility Principle (SRP) 📦 Understanding the
Depend on abstractions (interfaces), not concrete implementations.
In Laravel or standard PHP, a UserController should only handle HTTP requests. It should not directly calculate payroll or send emails; those tasks belong in separate services or observers. O: Open-Closed Principle (OCP)
Objects of a superclass should be replaceable with objects of its subclasses without breaking the application.