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".