PHP Interface - What is PHP Interface and How to Use It

In this video I explain what PHP interface is and how to use it.
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[@oyinbrakemimichaelmenebray5966]

Very straightforward. Simple to understand

[@eloquent2200]

Thank you for good explanation!

[@easywiesi2055]

thanks! finally i got it 👍

[@saulespukje8]

nice, thanks!

[@dibbyo456]

Perfect.

[@keegers1]

I guess I don't understand. Why write the interface if to still need to call the class/functions of the other class? Even the last part, you still copied and pasted the MySQL class to the new Oracle one.

[@clevertechie]

Because the code of the function's implementation in the MySQL and Oracle classes can be different, this is the key thing to understand.

[@CaptainBradleySmith]

@@clevertechie why code cant be different with same names of functions without that additional interface part?

[@jareklotz]

Answer : you can pass to function as a parametr class object and define in parameter, type of interface that object implements. Then, this function knows that this object has all necessary functions, so no error will occur. Example:
myFunc(InterfaceName $object).

[@Ruban_Sn]

2:41 aren't those supposed to called as "function declarations!?

[@ArnVenture12]

Wow. Been a while???

[@ahmedsunil3235]

What is your vscode theme setting including font?

[@clevertechie]

Material Theme Ocean, Font: Consolas, 18

[@ripplesr5655]

I don't seem to grasp the concept of, why would you use Interface if we are using the same name methods inside every classes anyway.

[@ripplesr5655]

Ok, got it. Basically this helpls you in the development phase by forcing you to adhere to a set of rules that implements the interface. Anyone, coming from TypeScript should not have any issue understanding this.

[@DoctorMGL]

still don't get it ,
because thats just adding more size to your code while you can define the function + it functionality directly without the interface,
i thought its like in C# where you can update something live in the UI using interface , or at least sharing the same triggered information across the app as in C++ and UE blueprint
but in php it turn to be a joke , it just define a function name for you thats it . 0 real benefits
its like Filling a circle with the same color twice, while the first " Fill " was enough

[@ripplesr5655]

Exactly that is what I am thinking. What is the point tho?

[@ripplesr5655]

Ok, got it. Basically this helpls you in the development phase by forcing you to adhere to a set of rules that implements the interface. Anyone, coming from TypeScript should not have any issue understanding this.

[@returnMarcco]

For example, say you have 10 classes implementing the same interface, and the interface has one method called echo_text(). You could loop over the 10 instances of those classes and call the echo_text() method on each of the 10 objects and be sure that method exists, without even knowing the implementation of the method.

[@ellmatic]

weird, i've never seen anyone use spaces in their class filenames

[@NoAdsMurad-t3t]

When you are creating an object to the actual classes, then why you need an Interface? I mean the interface looks useless here.

[@anupkaushik9370]

You mean Abstraction and Interfaces are same thing

[@returnMarcco]

Polymorphism. Abstraction has to do with abstract classes

[@mrmbeautiquethebrand]

I don't understand. Why u are using interfaces.. Thoes work done by change class if your other class has same method you can change it your implementation class

[@thedude9014]

I think Interfaces are used to make sure that all function that are needed are present in the class . what he missed was that if you forget to implement those function you get an error. An interface is a sort of contract and it's more about organizing code that provide a funtionality

[@witcherle9944]

@@thedude9014 your comment should be pinned

[@Rex-lp1dl]

@@thedude9014 You nailed it. That's more precise