What are the recommended ways to structure and organize PHP code for better readability and maintainability, especially in the context of database operations?

To improve the readability and maintainability of PHP code, especially in the context of database operations, it is recommended to separate concerns by using a proper MVC (Model-View-Controller) architecture. This involves dividing the code into separate layers for handling business logic, database operations, and user interface. By structuring the code in this way, it becomes easier to understand and maintain, as each component has a clear responsibility. 

// Example of structuring PHP code using MVC architecture

// Model (handles database operations)
class User {
    public function getUserById($id) {
        // Database query to fetch user data
        return $userData;
    }
}

// Controller (handles business logic)
class UserController {
    public function getUserDetails($id) {
        $userModel = new User();
        $userData = $userModel->getUserById($id);
        
        // Business logic to process user data
        return $processedData;
    }
}

// View (handles user interface)
class UserView {
    public function displayUserDetails($userData) {
        // Display user data in HTML format
    }
}

// Implementation
$userController = new UserController();
$userData = $userController->getUserDetails($userId);

$userView = new UserView();
$userView->displayUserDetails($userData);

Keywords

MVC PDO ORM PSR-4 Code refactoring

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