How can the EVA pattern be applied to PHP applications for better maintainability and readability?

Issue: The EVA pattern (Entity-View-Action) can be applied to PHP applications to improve maintainability and readability by separating the concerns of data manipulation, presentation, and business logic. By organizing the codebase into distinct layers, developers can easily make changes to individual components without affecting the entire application. PHP Code Snippet: 

// Entity layer
class User {
    private $id;
    private $name;
    
    public function __construct($id, $name) {
        $this->id = $id;
        $this->name = $name;
    }
    
    // Getters and setters
}

// View layer
class UserView {
    public function renderUser(User $user) {
        return "User ID: " . $user->getId() . ", Name: " . $user->getName();
    }
}

// Action layer
class UserController {
    public function getUserById($id) {
        // Retrieve user data from database
        $userData = // query database
        
        // Create User entity
        $user = new User($userData['id'], $userData['name']);
        
        return $user;
    }
}

// Implementation
$userController = new UserController();
$user = $userController->getUserById(1);

$userView = new UserView();
echo $userView->renderUser($user);

Keywords

EVA pattern PHP applications maintainability readability error handling

Related Questions