SOLID Principle with Examples in PHP
In Object-Oriented Programming (OOP), we rely on the concept of objects/classes where everything inside of it is an object. It’s kind of useful because it’s similar to the way we live where everything is an object. With the OOP paradigm, our codes will be much easier to maintain, understand, and tends to be reusable.
When working in OOP, we’ll usually follow the S.O.L.I.D principle. The principle working greatly with the OOP programming because it’ll make our codes better in every way, and we can maximize the potential of OOP. So in this article, I’ll show you all of these principles as well as the practical example of using them in PHP Languages.
Before we start, let me explain what we’re going to build using the SOLID principle. We’re going to create a simple message responder where when we input a text, it’ll return a message/string based on the text we inputted. It’s so basic that we can even use if-else or switch statements to do that, but we’ll refactor it later by using the SOLID principles and let’s see the improvements we can make from it.
