How do I separate domain and infrastructure layers?

In a clean architecture approach, it's essential to separate your domain and infrastructure layers effectively. The domain layer contains the core business logic and rules, while the infrastructure layer handles the communication between your application and external systems, such as databases, frameworks, or APIs. This separation allows for better maintainability, testability, and scalability of your application.

domain layer, infrastructure layer, clean architecture, separation of concerns, maintainability

This guide explains how to effectively separate the domain and infrastructure layers in a clean architecture, ensuring better organization and scalability of your application.


        <?php
        // Domain Layer
        class User {
            private $name;

            public function __construct($name) {
                $this->name = $name;
            }

            public function getName() {
                return $this->name;
            }
        }

        // Infrastructure Layer
        class UserRepository {
            private $users = [];

            public function addUser(User $user) {
                $this->users[] = $user;
            }

            public function getUsers() {
                return $this->users;
            }
        }

        // Usage
        $userRepo = new UserRepository();
        $user = new User("John Doe");
        $userRepo->addUser($user);
        echo $userRepo->getUsers()[0]->getName(); // Outputs: John Doe
        ?>

How do I separate domain and infrastructure layers?

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How do I separate domain and infrastructure layers?

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