Laravel Examples Dependency Injection PHP // app/Services/EmailService.php class EmailService { public function send(string $to, string $subject, string $message) { // Send email using a third-party library // ... } } // app/Http/Controllers/UserController.php class UserController extends Controller { public function __construct(EmailService $emailService) { $this->emailService = $emailService; } public function register(Request $request) { // ... $this->emailService->send($request->input('email'), 'Welcome...Read More