This document discusses Symfony 3 migration and changes from previous versions. Key points include: - Symfony 3 will focus on fixing architectural mistakes and removing deprecated code rather than major changes. - The release process follows semantic versioning and backward compatibility breaks are allowed for major releases. - To migrate, applications using versions before 2.3 should upgrade to 2.3 first, and those between 2.3-2.6 should upgrade to 2.7/2.8. - Third party bundles may also need to be upgraded to support Symfony 3.

1. 3
Migrare
a

2. Michele Orselli
CTO@Ideato
_orso_
micheleorselli / ideatosrl
mo@ideato.it

5. Developing waterproof
PHP Applications

8. Remember sf1 to Sf2
migration?

11. Symfony 3 will not be
a revolution

12. s
Fixing architectural mitakes
• synchronized service
• form
• validation api

13. • new directory layout
• no more assetic by default?
• remove deprecated code
king
Brea Changes

14. https://twitter.com/symfony_en/status/651327366636118016

15. Release Process
http://symfony.com/doc/current/contributing/community/releases.html
http://symfony.com/roadmap

16. Semantic versioning (~ 2.4)
X . Y . Z

17. Semantic versioning (~ 2.4)
X . Y . Zmajor version
allows BC Break

18. Semantic versioning (~ 2.4)
X . Y . Zminor version
new features
no BC

19. Semantic versioning (~ 2.4)
X . Y . Zbug fix
security fix

20. LTS version

22. Dealing with
deprecated stuff

24. 1 @trigger_error(
2 ’getDefaultOptions() is deprecated since version 2.1
and will be removed in 2.3. Use setDefaultOptions()
instead.’, E_USER_DEPRECATED
3 );

25. 1 set_error_handler(function($type, $msg) {
2 file_put_contents(
3 './deprecated.log',
4 $msg //debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
5 });

28. 1 <service id="bar" class="stdClass">
2 <deprecated>
3 The "%service_id%" service is deprecated!
4 </deprecated>
5 </service>

31. How to migrate

33. sf < 2.3: upgrade to 2.3
2.3 <= sf <= 2.6: upgrade to 2.7/2.8

34. sf < 2.3: upgrade to 2.3
2.3 <= sf <= 2.6: upgrade to 2.7/2.8

35. Min PHP version is 5.5.x

36. Make your code deprecation free
- fix your code
- update vendors if needed
http://symfony.com/doc/current/cookbook/upgrade/index.html
https://knpuniversity.com/blog/upgrading-symfony-2.7

37. 1 {
2 "...": "...",
3
4 "require": {
5 "symfony/symfony": "3.0.*",
6 },
7 "...": "..."
8 }
$ composer update symfony/symfony --with-
dependencies
https://github.com/symfony/symfony/blob/master/UPGRADE-3.0.md

38. What about 3rd-party
Bundles?

42. 1 "require": {
2 "php": ">=5.4.0",
3 "psr/log": "^1.0",
4 "symfony/framework-bundle": "^2.7|^3.0",
5 "symfony/routing": "^2.7|^3.0",
6 "doctrine/inflector": "^1.0",
7 "willdurand/negotiation": "^2.0",
8 "willdurand/jsonp-callback-validator": "^1.0"
9 },
10

43. FOSUserBundle
FOSRestBundle
FOSElasticaBundle

44. KnpMenuBundle
SonataAdminBundle
HWIOAuthBundle

45. JMSSecurityExtraBundle
JMSSerializerBundle
JMSI18nRoutingBundle

46. LiipImagineBundle
NelmioApiDocBundle
VichUploaderBundle
KnpGaufretteBundle

48. Thanks!

49. scream https://www.flickr.com/photos/karochkin/3674906958
keep calm: https://en.wikipedia.org/wiki/
File:Keep_Calm_and_Carry_On_Poster.svg
cat https://c1.staticflickr.com/5/4005/4406527325_a0213d1fc0_b.jpg
https://c1.staticflickr.com/9/8534/8671901426_a940c6940f_b.jpg