Welcome to the Symfony2 World - FOSDEM 2013

Daniel Kucharski @inspiran_be

Lukas Smith @lsmith

Welcome to the Symfony2 World

Saturday, February 2, 13

• Developer at Liip AG in Switzerland

• PHP 5.3 co-release-manager,

• Contributing to Doctrine, Symfony, PHPCR ..

Speakers

Lukas Kahwe Smith

• SAP Business Consultant by day

• PHP enthusiast at night since 2000

• Co-founder of the Vespolina Ecommerce Project

Speakers

Daniel Kucharski

• Symfony2 is a set of standalone, decoupled and cohesive PHP

• Symfony2 is a full-stack framework

• MIT licensed (permissive, GPL compatible)

• Compliant with , PSR-1, PSR-2, PSR-3

• https://github.com/symfony/symfony

reusable

What is Symfony2?

components

• Approaching

• Most popular PHP project on github.com

• First stable release in July 2011

• LTS release with in May 2013

• Used on many big sites: ted.com, lockerz.com, opensky.com, exercise.com, wetter.de, stern.de ..

What is Symfony2?

700 contributors

5 year support

Components

LocaleOptionsResolver

ProcessPropertyAccess

RoutingSecuritySerializerStopwatchTemplatingTranslationValidator

BrowserKitClassLoader

ConfigConsole

CssSelectorDomCrawler

DependencyInjectionEventDispatcher

FilesystemFinderForm

HttpFoundationHttpKernel

• Easily parse and write YAML files

• Implements most of the YAML 1.2 specuse Symfony\Component\Yaml\Parser;

$yaml = new Parser();

$string = file_get_contents('foo.yml')$data = $yaml->parse($string);

# data, inlining, indenting, invalid types, objects$string = $yaml->dump($data, 2, 4, false, true);file_put_contents('bar.yml', $string);

• OO API for HTTP Request + Response

• OO API for Session incl. “flash messages”

• Supports response

$request = Request::create('/?foo=bar', 'GET');echo $request->getPathInfo();

$resp = JsonResponse::create($data, 200);

$hdrs = array('Content-Type' => 'text/plain');$resp = new StreamingResponse($callback, 404, $hdrs);$resp->send();

Http Foundation

streaming

• PHP level CGI interface

• Eases integration between Symfony2, Silex, Drupal8, ezPublish5, Laravel4 .. applications

HTTP Kernel

interface HttpKernelInterface{ const MASTER_REQUEST = 1; const SUB_REQUEST = 2;

public function handle( Request $request, $type = self::MASTER_REQUEST, $catch = true );}

use Symfony\Component\HttpFoundation\Request;

// env: prod, debug: false$kernel = new AppKernel('prod', false);

// wrap the kernel for ESI enabled HTTP caching$kernel = new AppCache($kernel);

// create the request from the super globals$request = Request::createFromGlobals();

// convert request into a response$response = $kernel->handle($request);

// send response content to the client$response->send();

// event fired after browser has received response $kernel->terminate($request, $response);

HTTP Kernel

DoctrineAsseticGuzzle

PHPUnitBehat

GoutteJackalope

Drupal 8ezPublish 5Laravel 4phpBB 3.5

PPISilex

shopware..

Component usageFrameworks / Applications Libraries / Components

• , MVC framework 2nd

• Very extensible due to processing and

• Inspired by Django, Spring, Ruby on Rails

• HTTP Caching / / Reversed proxy

• Extensive documentation + debugging tools

Symfony2 Framework

HTTP framework 1st

dependency injectionevent based request

• Selection of bundles, a default directory / file structure and default configuration

• Symfony Standard edition

• Symfony CMF Standard edition

• Sonata standard edition

• KNP Rad Edition

Distributions

php composer.phar create-project symfony/framework-standard-edition your-dir

What is a Bundle?

Ideally, the glue code necessary to

a with the symfony2 framework (ie. configure

the Dependency Injection Container) plus any required

minimal connect

library

controller routes

FrameworkBundleMonologBundleAsseticBundle

WebProfilerBundleTwigBundle

SwiftmailerBundleSecurityBundle

Core bundles

KNPbundles.com

FOSUserBundleSonataAdminBundle

FOSRestBundleStofDoctrineExtensionBundle

KnpMenuBundle..

NelmioApiDocBundleJMSDebuggingBundle

LiipCacheControlBundleKnpRadBundle

Popular bundles

AsseticMonolog

Doctrine / PropelTwig

SwiftmailerPHPUnit

ImagineBehat / PHPSpec / Atoum

Buzz / GuzzleGoutte

KnpMenuJMS Serializer

The ecosystem

Core Dependencies Popular Dependencies

Ecosystem

Composer

curl -s https://getcomposer.org/installer | phpphp composer.phar installphp composer.phar require acme/lib:1.1.* --no-updatephp composer.phar update acme/lib

Composer

• Dependency manager for PHP

• Based on SUSE Linux dependency resolver

• Register on

• Setup your own package index with Satis

packagist.org

• Template language implemented in PHP

• Fast: Compiles to PHP and Javascript

• Template inheritance

• Secure: sandbox mode, output escaping

• Easily create new tags, filters and functions

• Many community extensions are available

{% extends "base.html" %}

{% block title %}Index{% endblock %}{% block head %} {{ parent() }} <style type="text/css"> .important { color: #336699; } </style>{% endblock %}{% block content %} {% if users|length > 0 %} <ul> {% for user in users %} <li>{{ user.username|e }}</li> {% endfor %} </ul>{% endif %}{% endblock %}

• Cleverly handle your JS/CSS web assets

• Inspired by the Python webassets lib

• : Combine, Less, Sass ...

• : Minify, YUICompressor, ..

• Provides ways to handle cache busting

• Build assets during development or dump to static files in production

Assetic

Assets

Filters

on the fly

{% stylesheets '@AcmeFooBundle/Resources/public/css/*' %} <link rel="stylesheet" href="{{ asset_url }}" />{% endstylesheets %}

{% javascripts 'bundles/acme_foo/js/*' filter='yui_js' %} <script src="{{ asset_url }}"></script>{% endjavascripts %}

Assetic

# Assetic Configurationassetic: use_controller: false #java: /usr/bin/java filters: cssrewrite: ~ # closure: # jar: %kernel.root_dir%/java/compiler.jar # yui_css: # jar: %kernel.root_dir%/java/yuicompressor-2.4.2.jar

• PSR-3 compliant logging library

• Inspired by the Python logbook lib

• Handlers

• StreamHandler, RotatingFileHandler, NativeMailHandler, MongoDBHandler, ...

• FingersCrossedHandler

• Channels, Formatters, Processors

Monolog

// create a log channel$log = new Logger('name');$fileName = 'path/to/your.log';$handler = new StreamHandler($fileName, Logger::WARNING);

// log everything if there is at least one warning or higher$log->pushHandler(new FingersCrossedHandler($handler);$logger->pushHandler(new FirePHPHandler());

$socketName = 'unix:///var/log/httpd_app_log.socket';$handler = new SocketHandler($socketName);$handler->setPersistent(true);$logger->pushHandler($handler, Logger::DEBUG);

// add records to the log$log->addWarning('Foo');$log->log(Logger::ERROR, 'Bar');

Monolog

• Hibernate inspired data mapper API

• ORM Object Relational Mapper (SQL)

• Object Document Mapper (CouchDB, MongoDB, PHPCR, OrientDB, ..)

• DBAL / Migrations / Fixtures

• Annotations, Cache, Inflector, Lexer ..

Doctrine

• (De)serializing on steroids

• Handles nested (recursive) object graphs

• Fully leverage XML/JSON/.. features

• for groups, versioning

• Ability to define custom exclusion strategies and events handlers

JMS Serializer

Exclusion strategies

class BlogPost{ private $title; private $content; private $date; /* @XmlList(inline = true, entry = "tag") */ private $tags; /* @Groups({"admins"}) * @XmlAttribute * @Since("1.1.0") */ private $version; /* @VirtualProperty * @SerializedName("slug") * @XmlAttribute */ public function getSlug() { .. }

JMS Serializer

// sets the group exclusion strategy$serializer->setGroups(array(‘admins’));

// sets the version exclusion strategy// this overrides the group exclusion strategy// need to define your own class to combine the two$serializer->setVersion(‘1.2.0’);

$blogPost = new BlogPost($data);$serializer->serialize($blogPost, 'json');

JMS Serializer

Bridges

TwigBridgeSwiftmailerBridgeMonologBridgeDoctrineBridgePropel1Bridge

Bridges

Applications

The Symfony CMF project makes it easier for

to add to applications built with the

Symfony2 framework. Key development principles for the

provided are , ,

Symfony CMF

developers

CMS functionality

sets of bundles scalability usability

documentation testing

• Follows vision of the on top of Symfony2, PHPCR, Create.js

• CMF as target audience are CMS builders: Drupal 8, ezPublish 5, Symfony2 devs, ..

• Stable release planned for May 2013

• http://cmf.symfony.com

• Demo at http://cmf.liip.ch

Symfony CMF

decoupled CMS

• Decoupled storage, business logic, UI layers

• PHPCR is a storage API for CMS, essentially a tree + versioning enabled document DB

• Symfony2 handles the business logic

• create.js is a glue layer that ties together RDFa, backbone.js, inline edit + JSON-LD

A decoupled CMS

• Ecommerce application

• from a single person store

• to a multi national store.

• Decoupled components which can be used independently of Symfony2

• Several components will go stable in Q2

• http://www.vespolina-project.org

Vespolina Project

scalable

Vespolina Project

vespolina/vespolinaCore

vespolina/vespolinaProduct

vespolina/vespolinaProductBundle

base classes & interfaces

manager & mappings

defining managers a DI service

Framework agnostic

• http://fabien.potencier.org/article/49/what-is-symfony2

• http://fabien.potencier.org/article/50/create-your-own-framework-on-top-of-the-symfony2-components-part-1

• http://symfony.com/components

• http://cmf.symfony.com/slides/

• https://speakerdeck.com/hhamon/useful-php-librarieswhy_symfony_cmf.html

References

Please rate this talk on

http://joind.in/talk/view/8074

Questions?

• HTTP client & framework

• Restful web service clients

• Used by Amazon AWS SDK, Drupal 8, ...

• Uses Symfony Event dispatcher

• Service descriptions

Guzzle

use Guzzle\Http\Client;$client = new Client('https://api.github.com');

$request = $client->get('/user')->setAuth('user', 'pass');// Send the request and get the response$response = $request->send();

Guzzle

{ "name": "Foo", "apiVersion": "2012-10-14", "baseUrl": "http://api.foo.com", "description": "Foo is an API", "operations": { "GetUsers": { "httpMethod": "GET", "uri": "/users", "summary": "Gets a list of users", "responseClass": "GetUsersOutput" },...

GuzzleService Description

Guzzle... "GetUserOutput": { "type": "object", "properties": { "name": { "location": "json", "type": "string" }, "age": { "location": "json", "type": "integer"...

Service Description

use Guzzle\Service\Description\ServiceDescription;

$description = ServiceDescription::factory('service_description.json');$client->setDescription($description);

$command = $client->getCommand('GetUser', array('id' => 123));

$responseModel = $client->execute($command);echo $responseModel['age'];

Guzzle

• Collection of bundles to quickly create an Admin interface

• Media, News, Notification, Formatter, I18N,

Sonata Project

Welcome to the Symfony2 World - FOSDEM 2013

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