DevShed: Violating the Liskov Substitution Principle - PHP

- (phpdeveloper) - 11 months ago...

On DevShed today there's a new tutorial posted talking about the Liskov Substitution Principle (part of the SOLID set of principles) and how to use it in a practical example using some object-oriented PHP. However, not all is bad with Inheritance. When used properly it can be a great ally. The question that comes to mind is: how can you keep away from building derivatives that behave totally different from the chosen abstraction(s)? Here's exactly where the Liskov Substitution P...