How do you implement common functions/methods?

Question

PHP

Depending on which page the user enters, the desired controller and model are connected. It often happens that in some controller a certain method is already implemented, which, for example, is received by the browser / OS and this method is suddenly required in another controller. Do not copy this method? I try to avoid even the slightest repetition of the code. I came to the conclusion that we need to add a new, common controller (there are, by the way, common methods). Would like to know how to properly implement the common part?

Answer 1

Implemented through a generic abstract controller class.

abstract class AbstractController
{
    public function commonMethod() { }
}

class ConcreteControllerA extends AbstractController { }
class ConcreteControllerB extends AbstractController { }

You can spice it all up with traits:

trait ControllerTrait
{
    public function traitMethod() { }
}

/**
 * В этом контроллере будут общие методы абстрактного 
 * класса и методы трейта.
 */
class ConcreteControllerA extends AbstractController 
{ 
    use ControllerTrait;
}

/**
 * А в этом только общие методы абстрактного класса.
 */
class ConcreteControllerB extends AbstractController
{
    
}

More complicated option - controller plugins:
https://github.com/zendframework/zend-mvc/tree/mas...