Provides a list of new features in Symfony 3,3, 3,4, 4.0, 4,1 and Flex with examples

1. What is new in Symfony
3.3, 3,4, 4,0, 4,1 + Flex
Daniel Espendiller - PHP-Usergroup Münster / PHP.RUHR on Tour - 22.03.2018

2. PhpStorm Plugins
https://github.com/Haehnchen

3. Roadmap
● Symfony Standard and Flex
● Service Container changes (autowire, …)
● Controller usage optimizations
● Symfony 4.1
● Mixed gimmicks
● Questions

4. More Presentation
Symfony Flex in Action
@el_stoffel, @xabbuh
https://speakerdeck.com/el_stoffel/symfony-flex-in-action
Symfony Dependency Injection in 2017
@derrabus
https://slidr.io/derrabus/symfony-dependency-injection-in-2017

5. Symfony Installer + Flex
● Symfony Installer deprecated
● Use Symfony flex for new projects

6. The end of the Symfony Installer
This installer is not compatible with Symfony 4 and newer versions.
$ symfony new my_project 2.8

7. Symfony Flex
composer create-project symfony/skeleton my-project

8. Symfony Flex
composer require translations
composer require mailer

9. Symfony Flex - Recipes
https://symfony.sh/

10. Symfony Flex

11. Symfony Flex

12. Symfony Flex

13. Symfony Flex

14. Symfony Container
● Service as class
● Autowire
● Autoconfigure
● Tag optimizations
● Private service by default
● No Bundle in main projects

15. Service: Class as service id

16. Service: autowire
https://symfony.com/doc/current/service_container/autowiring.html

17. Service: autowire
Force service for multiple implementations
https://symfony.com/doc/current/service_container/autowiring.html

18. Service: auto register
https://symfony.com/doc/current/service_container/autowiring.html
This means that every class in src/ is available to be used as a service. And thanks to
the _defaults section at the top of the file, all of these services are autowired and
private (i.e. public: false).

19. Service: autoconfigure / _instanceof
https://symfony.com/doc/current/service_container/3.3-di-changes.html#auto-tagging-with-autoconfigure

20. Service: autoconfigure / _instanceof
PhpStorm service generator

21. Service Tagged Services
https://symfony.com/blog/new-in-symfony-3-4-simpler-injection-of-tagged-services
Service tags as argument without custom CompilerPass

22. Service: Tagged Services
https://symfony.com/blog/new-in-symfony-3-4-simpler-injection-of-tagged-services

23. Service: Argument Binding
http://symfony.com/doc/current/service_container.html#binding-arguments-by-name-or-type
Overwrite autowire argument or provide parameter injection

24. Service: autowire migration
https://symfony.com/doc/current/service_container/3.3-di-changes.html#upgrading-to-the-new-symfony-3-3-configuration
Set alias for old service id and migrate services by time

25. Service Locator
https://symfony.com/blog/new-in-symfony-3-3-service-locators
Inject services inside a “mini container”

26. Symfony 4.1: Simpler service testing
https://symfony.com/blog/new-in-symfony-4-1-simpler-service-testing
Access private services in tests

27. Controller: Service Arguments
How to use services in controller?

28. Controller: Service Arguments
https://symfony.com/doc/current/service_container/3.3-di-changes.html
Use the autowire feature to inject service in service

29. Controller: Service Arguments
https://symfony.com/doc/current/service_container/3.3-di-changes.html
Activate service injection via action parameter

30. Symfony 4.1: Getting container
parameters as a service
You just need to type-hint the argument with the ParameterBagInterface class or the
new ContainerBagInterface class (which is compatible with the PSR-11 standard)
https://symfony.com/blog/new-in-symfony-4-1-getting-container-parameters-as-a-service

31. Mixed gimmicks
● Controller optimizations
● Bundle notations
● Lazy Commands
● ...

32. Controller: __invoke
https://symfony.com/doc/current/controller/service.html#invokable-controllers

33. Symfony 4.1: Inlined routing
configuration
https://symfony.com/blog/new-in-symfony-4-1-inlined-routing-configuration

34. Controller: Prefix all controller route
names
https://symfony.com/blog/new-in-symfony-3-4-prefix-all-controller-route-names

35. Symfony 4.1: Deprecated the bundle
notation
In modern Symfony applications, it's no longer recommended to organize your business
logic using bundles. However, it was still possible to use the "bundle notation" for example
when defining routes
https://symfony.com/blog/new-in-symfony-4-1-deprecated-the-bundle-notation

36. Symfony 4.1: Invokable event
listeners
https://symfony.com/blog/new-in-symfony-4-1-invokable-event-listeners
No need for define a event method name

37. Symfony 4.1: Template controller
https://symfony.com/blog/new-in-symfony-4-1-invokable-event-listeners
Render a template via route without controller action

38. Lazy Commands
https://symfony.com/doc/current/console/commands_as_services.html#lazy-loading

39. Lazy Commands
Avoid calling getName() and __construct
https://symfony.com/doc/current/console/commands_as_services.html#lazy-loading

40. Controller: Template name change
https://github.com/Haehnchen/idea-php-symfony2-plugin/issues/1082

41. Controller: Templates Names
https://github.com/Haehnchen/idea-php-symfony2-plugin/issues/1082

42. Questions
Daniel Espendiller - PHP-Usergroup Münster / PHP.RUHR on Tour - 22.03.2018