// The Client Code function checkout(PaymentGateway $gateway, $amount) echo $gateway->pay($amount);
Abstraction hides complex implementation details and only shows the essential features of an object. In PHP, this is achieved using abstract classes and interfaces. Interfaces define what a class should do, while the class itself decides how to do it. 2. Advanced OOP Concepts Highlighted in Laravel object-oriented principles in php laracasts download
In the context of , you see these principles everywhere: $amount) echo $gateway->
Object-oriented principles are a set of guidelines that help developers create more maintainable, flexible, and scalable code. The four main principles of OOP are: object-oriented principles in php laracasts download