What potential issues can arise when implementing the MVC pattern in PHP?

One potential issue when implementing the MVC pattern in PHP is the tight coupling between the model, view, and controller components, which can make the code harder to maintain and test. To solve this issue, developers can use dependency injection to decouple the components and make them more modular. 

// Example of using dependency injection to decouple components in MVC

class UserController {
    private $userService;

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

    public function index() {
        $users = $this->userService->getAllUsers();
        require 'views/users/index.php';
    }
}

class UserService {
    public function getAllUsers() {
        // Logic to fetch all users from the database
    }
}

$userService = new UserService();
$userController = new UserController($userService);
$userController->index();

Keywords

MVC pattern PHP framework routing data binding

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