Code to an Interface: Everything You Need to Know

This story was originally published on HackerNoon at: https://hackernoon.com/code-to-an-interface-everything-you-need-to-know. How often have you heard "Code to an interface"? I'm sure, at least a few times, and I know it can be hard to understand at first. So let's see what it means. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #solid-principles, #software-architecture, #php, #code-to-an-interface, #coding-tutorial, #open-closed-principle, #liskov-substitution-principle, #hackernoon-top-story, and more. This story was written by: @oussamamater. Learn more about this writer by checking @oussamamater's about page, and for more stories, please visit hackernoon.com. "Code to an interface" never made sense to me. I questioned the need to create an interface and then implement it. How do I determine when and where to use these interfaces? If you're experiencing this, know that we've all been there. Let's help you understand why you need to "Code to interface".