My talk will be about ZF3, the most waited release of ZF for the last 4 years that were spent on development, features it brings and drawbacks of migration of existing ZF2 application to new rails comes with. Components, PSR-7, and Middleware

1. Zend Framework 3
Rostislav Mykhajliw
TrueSocialMetrics Inc.

2. Decoupling
Standards
Performance
Cleanup!

3. Components
"zendframework/zend-mvc": "*",
"zendframework/zend-mvc-console": "*",
"zendframework/zend-di": "*",
"zendframework/zend-servicemanager": "*",
"zendframework/zend-eventmanager": "*",
"zendframework/zendframework": "2.*",

4. ServiceManager / DI

5. InteropContainerContainerInterface
interface ContainerInterface
{
public function get($id);
public function has($id);
}
Aura-Di, Laravel, Nette-DI, PHP-DI, Pimple,
Symfony-DI, Zend-DI ...

6. ServiceLocator - DI
Provides integration for zend-di within
zend-servicemanager
"zendframework/zend-servicemanager-di": "*"

7. ServiceLocator - build everything
public function build($name, array $options = null)
{
// We never cache when using "build"
$name = isset($this->resolvedAliases[$name]) ?
$this->resolvedAliases[$name] : $name;
return $this->doCreate($name, $options);
}
$serviceLocator->build(‘Customer’, [‘name’ => ‘Joe’]); // Joe
$serviceLocator->build(‘Customer’, [‘name’ => ‘Mike’]); // Mike
Never caches custom object builder through ServiceLocator

8. ServiceLocatorAwareInterface - has gone ...
PluginManagerLocator - removed
You have to inject all your dependencies!
final class AuthentificationController extends AbstractActionController
{
private $service = $service;
public function __construct(AuthentificationService $service)
{
$this->service = $service;
}
}

9. FactoryInterface - has gone (deprecated) ...
ZendServiceManagerFactoryInterface - zf2
ZendServiceManagerFactoryFactoryInterface - zf3
WAT?

10. FactoryInterface - has gove (deprecated) ...
final class AuthentificationPluginFactory
{
public function getContainer(ServiceLocatorInterface $serviceLocator)
{
// zf2
if ($serviceLocator instanceof AbstractPluginManager) {
return $serviceLocator->getServiceLocator();
}
// zf3
return $serviceLocator;
}
public function __invoke(ServiceLocatorInterface $serviceLocator)
{
$container = $this->getContainer($serviceLocator);
$repository = $container->get('RepositoryCustomer');
return new AuthentificationPlugin($repository);
}
}

11. EventManager

12. EventManager
StaticEventManager - removed!
GlobalEventManager static methods - GONE!
SharedEventAggregateAwareInterface - removed!

13. EventManager
HALLELUJAH!
(c) gifly.com

14. EventManager
$application = $e->getApplication();
$eventManager = $application->getEventManager()
$sharedEvenManager = $eventManager->getSharedManager();
ZF2
ZF3
$sharedEvenManager instanceof SharedEventAggregateAwareInterface
!($sharedEvenManager instanceof SharedEventAggregateAwareInterface)

15. PSR-7 / Middleware

16. PSR-7 - HTTP Message Interface
function (RequestInterface $request) : ResponseInterface

17. Middleware
Authentification
App
Session
request response

18. Middleware
function ($request, $response, $next)
{
return $next(
$request,
$response
);
}

19. Middleware
Zend Diactoros
PSR-7 implementation
Zend Stratigility
middleware pipes
Zend Expressive
micro framework on top of Zend Diactoros + Zend Stratigility

20. Middleware pipes are AWESOME!
$app = new ZendStratigilityMiddleWarePipe();
$app->pipe($sessionManager); // always call
$app->pipe('/blog', $blogMiddleware);
$app->pipe('/api', $apiMiddleware);
$app->pipe($myCoreApp);

21. Middleware pipes are AWESOME!
$apiApp = new ZendStratigilityMiddleWarePipe();
$apiApp->pipe($tokenValidation);
$apiApp->pipe($versionValidation);
$apiApp->pipe($apiMiddleware);
$myApp->pipe($sessionManager); // always call
$myApp->pipe('/blog', $blogMiddleware);
$myApp->pipe($myCoreApp);
$app = new ZendStratigilityMiddleWarePipe();
$app->pipe(‘/api’, $apiApp);
$app->pipe($myApp);

22. Middleware pipes error handling
$errorhandler = function($error, $request, $response,
$next) {
return $response->end('Internal error:' . $error);
}
$app = new ZendStratigilityMiddleWarePipe();
$app->pipe('/api', $apiMiddleware);
$app->pipe($errorhandler);

23. JSON + ENCRYPTION
JWT

24. Middleware - JWT
{
"alg": "HS256",
"typ": "JWT"
}
{
"user": "John Dow",
"role": "admin"
}
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVC
J9.eyJzdWIiOiIxMjM0NTY3ODkwIiwib
mFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iO
nRydWV9.TJVA95OrM7E2cBab30RM
HrHDcEfxjoYZgeFONFh7HgQ
HEADER DATA SIGNATURE
SHA256 (HEADER +
DATA + SECRET)

25. Middleware - Session + JWT =
PLUSES
Overhead ~ 400 bytes cookies
● - 20 ms on page load (it’s memcache session overhead)
● Scalability
● Independent of storage

26. Middleware - session
"ocramius/psr7-session" : "*"
"necromant2005/tt-serverless-session" : "*"

27. Zend
Expressive

28. DI
Aura-DI
Pimple
Zend-DI
...
ROUTER
Aura-Route
FastRoute
Zend-Router
...
TEMPLATE
Twig
Plates
Zend-View
...
Standalone symphony

29. Expressive

30. Expressive
composer create-project zendframework/zend-expressive-skeleton expressive
Which router do you want to use?
[1] Aura.Router
[2] FastRoute
[3] Zend Router
Which container do you want to use for dependency injection?
[1] Aura.Di
[2] Pimple
[3] Zend ServiceManager
Which template engine do you want to use?
[1] Plates
[2] Twig
[3] Zend View
composer serve

31. Expressive
$app = AppFactory::create();
$app->get('/', $blogApp);
$app->post('/trackback', 'TrackBack');
$app->put('/post/{id}', 'ReplacePost')
->setOptions([
'tokens' => [ 'id' => 'd+' ],
]);
$app->delete('/post/{id}', 'DeletePost')
->setOptions([
'tokens' => [ 'id' => 'd+' ],
]);
$app->patch('/trackback');
$app->get('/api', function($req, $res, $next) {
return new JsonResponse(['ack' => time()]);
});
$app->run();
You can reach the same through config!

32. Expressive
namespace AppAction;
class MyAction
{
public function __invoke($request, $response, callable $next)
{
$query = $request->getQueryParams();
$message = $query['message'];
return $response->getBody()->write(
'My very unique message ' . $message
);
}
}
Which error handler do you want to use during development?
[1] Whoops
[n] None of the above

33. Expressive - PIPES
$blog = new BlogMiddleware();
$api = AppFactory::create();
$app = AppFactory::create();
$app->pipe('/api', $api);
$app->pipe('/blog', $blog);
$app->run();

34. Expressive - ErrorHandling
"filp/whoops": "*"
● Flexible, stack-based error handling
● No required dependencies
● Simple API for dealing with exceptions, trace frames
& their data
● Includes handlers for different response formats
(JSON, XML, SOAP)

36. Performance

37. Performance
PHP7
New Data structures
Strict Types
Closures / Traits

38. Performance
ServiceLocator - 4x faster
EventManager - 10x faster
Routing - 2x faster
Hello world! - 7x times faster

39. 2x faster page loading

40. 3x less memory

41. Tests

42. Tests - straight from the heart manual
class AlbumControllerTest extends AbstractHttpControllerTestCase
{
public function setUp()
{
$this->setApplicationConfig(include 'config/application.config.php');
parent::setUp();
}
public function testAlbum()
{
$this->dispatch('/album');
$this->assertResponseStatusCode(200);
}
}

43. Tests - straight from the heart manual
class AlbumControllerTest extends AbstractHttpControllerTestCase
{
public function setUp()
{
$this->setApplicationConfig(include 'config/application.config.php');
parent::setUp();
}
public function testAlbum()
{
$this->dispatch('/album');
$this->assertResponseStatusCode(200);
}
}

44. Tests - works
class RedirectControllerTest extends TestCaseController
{
public function testRedirectNonAuthAction()
{
$controller = new RedirectController();
(new EnvironmentBuilder($this))->build($controller, []);
$res = $controller->redirectAction();
$this->assertEquals(['/analytic/metric?ga=redirect-wrong'], $res);
}
}

45. Tests - works
public function testRedirectAuthAndViewReffererAction()
{
$controller = new RedirectController();
(new EnvironmentBuilder($this))->build($controller, [
['name' => 'Request',
'options' => [
'query' => ['refferer' => 'http://x.com/zzz'],
'server' => ['HTTP_HOST' => 'x.com'],
],
],
]);
$view = $controller->redirectAction();
$this->assertInstanceOf('ZendViewModelViewModel', $view);
$this->assertEquals('http://x.com/zzz', $view->refferer);
}

46. "necromant2005/tt-test" : "*"

47. QUESTIONS ?