What are some best practices for organizing PHP code to ensure maintainability and scalability?

To ensure maintainability and scalability of PHP code, it is important to follow best practices such as using proper naming conventions, separating concerns through modularization, implementing design patterns, and documenting code effectively. By organizing code in a structured and logical manner, it becomes easier to maintain and scale the application over time. 

// Example of organizing PHP code using proper naming conventions and modularization

// File: UserController.php
class UserController {
    public function index() {
        // logic for displaying user list
    }

    public function show($id) {
        // logic for displaying user details
    }
}

// File: UserService.php
class UserService {
    public function getUserById($id) {
        // logic for fetching user data
    }

    public function updateUser($id, $data) {
        // logic for updating user data
    }
}

// File: index.php
$userController = new UserController();
$userController->index();

Keywords

MVC PSR standards autoloading namespaces dependency injection

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