Symfony2 - WebExpo 2010

Symfony2 Fabien Potencier

How many of you have already used symfony1?

How many of you have already played with Symfony2?

What is Symfony2?

A set of decoupled and cohesive components

DependencyInjection EventDispatcher HttpFoundation OutputEscaper

DomCrawler CssSelector Templating HttpKernel BrowserKit Validator Routing Console Process Finder Form Yaml

git clone git://github.com/symfony/symfony.git

Autoloading

PEAR_Log > PEAR/Log.php Zend_Log > Zend/Log.php

Swift_Mime_Message > Swift/Mime/Message.php Twig_Node_For > Twig/Node/For.php

Symfony\Foundation\Kernel Symfony/Foundation/Kernel.php

Doctrine\DBAL\Driver Doctrine/DBAL/Driver.php

pdepend\reflection\ReflectionSession pdepend/reflection/ReflectionSession.php

http://groups.google.com/group/php-standards/web/psr-0-final-proposal

require_once '.../Symfony/Framework/UniversalClassLoader.php';

use Symfony\Framework\UniversalClassLoader;

$loader = new UniversalClassLoader(); $loader->register();

PHP 5.3 technical interoperability standards

$loader->registerNamespaces(array( 'Symfony' => '/path/to/symfony/src', 'Doctrine' => '/path/to/doctrine/lib', 'pdepend' => '/path/to/reflection/source', ));

$loader->registerPrefixes(array( 'Swift_' => '/path/to/swiftmailer/lib/classes', 'Zend_' => '/path/to/vendor/zend/library', ));

PEAR style

Process

use Symfony\Component\Process\Process;

$cmd = 'ssh 1.2.3.4 "ps waux"';

$process = new Process($cmd); $process->run();

if (!$process->isSuccessful()) { throw new \RuntimeException( $process->getErrorOutput()); }

echo $process->getOutput();

$cmd = 'ssh 1.2.3.4 "tail -f /some/log"';

$process = new Process($cmd);

$process->run(function ($type, $buffer) { echo $buffer; });

use Symfony\Component\Process\PhpProcess;

$process = new PhpProcess( '<?php echo "hello"; ?>'); $process->run();

if (!$process->isSuccessful()) { throw new \RuntimeException( $process->getErrorOutput()); }

echo $process->getOutput();

CssSelector

use Symfony\Component\CssSelector\Parser;

Parser::cssToXpath('h4 > a:contains("foo")');

use Symfony\Component\CssSelector\Parser;

$document = new \DOMDocument(); $document->loadHTMLFile('...'); $xpath = new \DOMXPath($document);

$expr = Parser::cssToXpath('a.smart'); $nodes = $xpath->query($expr);

foreach ($nodes as $node) { printf("%s (%s)\n", $node->nodeValue, $node->getAttribute('href')); }

Finder

use Symfony\Component\Finder\Finder;

$finder = new Finder(); $finder ->files() ->in(__DIR__) ->...() ->sortByName() ;

$finder ->name('*.php') ->depth('<= 1') ->date('>= yesterday') ->size('<= 1K') ->filter(function (\SplFileInfo $file) { return strlen($file->getBasename()) < 9; }) ;

foreach ($finder as $file) { print $file->getRealpath()."\n"; }

$files = iterator_to_array($finder);

$count = iterator_count($finder);

use Symfony\Component\Finder\Finder;

$s3 = new \Zend_Service_Amazon_S3($key, $sct); $s3->registerStreamWrapper("s3");

$finder = new Finder(); $finder ->name('photos*') ->size('< 100K') ->date('since 1 hour ago') ->in('s3://bucket-name') ;

Routing

/blog.php?section=symfony&article_id=18475

web/ index.php

/index.php/blog/2010/09/18/Symfony2-in-India

/blog/2010/09/18/Symfony2-in-India

/blog/:year/:month/:day/:slug

post: pattern: /blog/:year/:month/:day/:slug defaults: { _controller: BlogBundle:Post:show }

<routes> <route id="post" pattern="/blog/:year/:month/:day/:slug"> <default key="_controller"> BlogBundle:Post:show </default> </route> </routes>

use Symfony\Component\Routing\RouteCollection; use Symfony\Component\Routing\Route;

$collection = new RouteCollection();

$route = new Route( '/blog/:year/:month/:day/:slug', array('_controller' => 'BlogBundle:Post:show'));

$collection->addRoute('post', $route);

return $collection;

$router ->match('/blog/2010/09/18/Symfony2-in-India')

$router ->generate('post', array('slug' => '...'))

post: pattern: /post/:slug defaults: { _controller: BlogBundle:Post:show }

$router ->generate('post', array('slug' => '...'))

An Object-Oriented abstraction on top of PHP

Request

use Symfony\Component\HttpFoundation\Request;

$request = new Request();

// get a $_GET parameter $request->query->get('page');

// get a $_POST parameter $request->request->get('page');

// get a $_COOKIE parameter $request->cookies->get('name');

$request->getPreferredLanguage(array('en', 'fr')); $request->isXmlHttpRequest();

// get a $_FILE parameter $f = $request->files->get('image');

// $f is an instance of // Symfony\Component\HttpFoundation\File\UploadedFile

// guess extension, based on the mime type $n = '/path/to/file'.$file->getDefaultExtension(); $f->move($n);

new Request();

new Request( $_GET, $_POST, array(), $_COOKIE, $_FILES, $_SERVER );

Request::create('/hello/Fabien', 'GET');

Session

$session = $request->getSession();

$session->set('foo', 'bar'); $session->get('foo');

$session->setFlash('notice', 'Congratulations!');

Response

use Symfony\Component\HttpFoundation\Response;

$response = new Response('Hello World', 200, array('Content-Type' => 'text/plain')); $response->send();

$response->setHeader('Content-Type', 'text/plain'); $response->setCookie('foo', 'bar'); $response->setContent('Hello World'); $response->setStatusCode(200);

An Object-Oriented abstraction of the HTTP dialog

A MVC Web Framework

The Symfony2 MVC Philosophy

Be as easy as possible for newcomers and as flexible as possible for advanced users

http://symfony-reloaded.org/

http://symfony-reloaded.org/downloads/sandbox_2_0_PR3.zip

post: pattern: /hello/:name defaults: { _controller: HelloBundle:Hello:index }

namespace Application\HelloBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller;

class HelloController extends Controller { public function indexAction($name) { return new Response('Hello '.$name); } }

namespace Application\HelloBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller;

class HelloController extends Controller { public function indexAction($name) { // Get things from the Model

return $this->render( 'HelloBundle:Hello:index', array('name' => $name) ); } }

Hello <?php echo $name ?>!

<?php $view->extend('HelloBundle::layout') ?>

Hello <?php echo $name ?>!

<html> <head> <title> <?php $view['slots']->output('title') ?> </title> </head> <body> <?php $view['slots']->output('_content') ?> </body> </html>

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_content

layout

{% extends "HelloBundle::layout" %}

{% block content %} Hello {{ name }}! {% endblock %}

<html> <head> <title> {% block title %}{% endblock %} </title> </head> <body> {% block body %}{% endblock %} </body> </html>

~ PAC / HMVC

http://en.wikipedia.org/wiki/Presentation-abstraction-control

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main controller (_content slot)

embedded MVC controller

layout

public function indexAction($name) { $embedded = $this['controller_resolver'] ->render('HelloBundle:Hello:foo', array('name' => $name));

return $this->render( 'HelloBundle:Hello:index', array( 'name' => $name, 'embedded' => $embedded, ) ); }

<?php $view->extend('...:layout') ?>

Lorem ipsum...

<?php echo $view['actions'] ->render('HelloBundle:Hello:foo', array('name' => $name)) ?>

Lorem ipsum...

Bundles

.../ SomeBundle/ Controller/ Entity/ Resources/ config/ views/ SomeBundle.php Tests/

public function registerBundleDirs() { return array( 'Application' => __DIR__.'/../src/Application', 'Bundle' => __DIR__.'/../src/Bundle', 'Symfony\Bundle' => __DIR__.'/../src/vendor/symfony/src/Symfony/Bundle', ); }

$this->render('SomeBundle:Hello:index', $params)

hello: pattern: /hello/:name defaults: { _controller: SomeBundle:Hello:index }

SomeBundle can be any of

Application\SomeBundle Bundle\SomeBundle Symfony\Bundle\SomeBundle

Environments

Developers Customer End Users

Development Environment

Staging Environment

Production Environment

cache cache cache

debug debug debug

logs logs logs

stats stats stats

Development Environment

Staging Environment

Production Environment

# config/config.yml doctrine.dbal: dbname: mydbname user: root password: %doctrine.dbal_password%

swift.mailer: transport: smtp host: localhost

# config/config_dev.yml imports: - { resource: config.yml }

doctrine.dbal: password: null

swift.mailer: transport: gmail username: xxxxxxxx password: xxxxxxxx

# Doctrine Configuration doctrine.dbal: dbname: xxxxxxxx user: xxxxxxxx password: ~

# Swiftmailer Configuration swift.mailer: transport: smtp encryption: ssl auth_mode: login host: smtp.gmail.com username: xxxxxxxx password: xxxxxxxx

<doctrine:dbal dbname="xxxxxxxx" user="xxxxxxxx" password="" />

<swift:mailer transport="smtp" encryption="ssl" auth_mode="login" host="smtp.gmail.com" username="xxxxxxxx" password="xxxxxxxx" />

// Doctrine Configuration $container->loadFromExtension('doctrine', 'dbal', array( 'dbname' => 'xxxxxxxx', 'user' => 'xxxxxxxx', 'password' => '', ));

// Swiftmailer Configuration $container->loadFromExtension('swift', 'mailer', array( 'transport' => "smtp", 'encryption' => "ssl", 'auth_mode' => "login", 'host' => "smtp.gmail.com", 'username' => "xxxxxxxx", 'password' => "xxxxxxxx", ));

Dependency Injection Container

Third-party libraries integration Unified Configuration

# Twig Configuration twig.config: auto_reload: true

# Zend Logger Configuration zend.logger: priority: debug path: %kernel.root_dir%/logs/%kernel.environment%.log

Configuration formats XML, YAML, PHP, INI, or Annotations

Parameters management Fast (cached) Inheritance

Sensitive data security …

<doctrine:dbal dbname="sfweb" username="root" password="SuperSecretPasswordThatAnyoneCanSee" />

SetEnv SYMFONY__DOCTRINE__DBAL__PASSWORD "foobar"

in a .htaccess or httpd.conf file

%doctrine.dbal.password%

<doctrine:dbal dbname="sfweb" username="root" password="%doctrine.dbal.password%" />

Developer Tools

INFO: Matched route "blog_home" (parameters: array ( '_bundle' => 'BlogBundle', '_controller' => 'Post', '_action' => 'index', '_route' => 'blog_home',))

INFO: Using controller "Bundle\BlogBundle\Controller\PostController::indexAction"

INFO: SELECT s0_.id AS id0, s0_.title AS title1, s0_.html_body AS html_body2, s0_.excerpt AS excerpt3, s0_.published_at AS published_at4 FROM sf_weblog_post s0_ ORDER BY s0_.published_at DESC LIMIT 10 (array ())

INFO: Matched route "blog_post" (parameters: array ( '_bundle' => 'BlogBundle', '_controller' => 'Post', '_action' => 'show', '_format' => 'html', 'id' => '3456', '_route' => 'blog_post',))

INFO: Using controller "Bundle\BlogBundle\Controller\PostController::showAction »

INFO: SELECT s0_.id AS id0, s0_.title AS title1, s0_.html_body AS html_body2, s0_.excerpt AS excerpt3, s0_.published_at AS published_at4 FROM sf_weblog_post s0_ WHERE s0_.id = ? (array ( 0 => '3456',)) ERR: Post "3456" not found! (No result was found for query although at least one row was expected.) (uncaught Symfony\Components\RequestHandler\Exception\NotFoundHttpException exception)

INFO: Using controller "Symfony\Framework\WebBundle\Controller\ExceptionController::exceptionAction"

DEBUG: Notifying (until) event "core.request" to listener "(Symfony\Framework\WebBundle\Listener\RequestParser, resolve)" INFO: Matched route "blog_post" (parameters: array ( '_bundle' => 'BlogBundle', '_controller' => 'Post', '_action' => 'show', '_format' => 'html', 'id' => '3456', '_route' => 'blog_post',)) DEBUG: Notifying (until) event "core.load_controller" to listener "(Symfony\Framework\WebBundle\Listener\ControllerLoader, resolve)" INFO: Using controller "Bundle\BlogBundle\Controller\PostController::showAction" DEBUG: Listener "(Symfony\Framework\WebBundle\Listener\ControllerLoader, resolve)" processed the event "core.load_controller" INFO: Trying to get post "3456" from database INFO: SELECT s0_.id AS id0, s0_.title AS title1, s0_.html_body AS html_body2, s0_.excerpt AS excerpt3, s0_.published_at AS published_at4 FROM sf_weblog_post s0_ WHERE s0_.id = ? (array ( 0 => '3456',)) DEBUG: Notifying (until) event "core.exception" to listener "(Symfony\Framework\WebBundle\Listener\ExceptionHandler, handle)" ERR: Post "3456" not found! (No result was found for query although at least one row was expected.) (uncaught Symfony\Components\RequestHandler\Exception\NotFoundHttpException exception) DEBUG: Notifying (until) event "core.request" to listener "(Symfony\Framework\WebBundle\Listener\RequestParser, resolve)" DEBUG: Notifying (until) event "core.load_controller" to listener "(Symfony\Framework\WebBundle\Listener\ControllerLoader, resolve)" INFO: Using controller "Symfony\Framework\WebBundle\Controller\ExceptionController::exceptionAction" DEBUG: Listener "(Symfony\Framework\WebBundle\Listener\ControllerLoader, resolve)" processed the event "core.load_controller" DEBUG: Notifying (filter) event "core.response" to listener "(Symfony\Framework\WebBundle\Listener\ResponseFilter, filter)" DEBUG: Notifying (filter) event "core.response" to listener "(Symfony\Framework\WebBundle\Debug\DataCollector\DataCollectorManager, handle)" DEBUG: Notifying (filter) event "core.response" to listener "(Symfony\Framework\WebBundle\Debug\WebDebugToolbar, handle)" DEBUG: Listener "(Symfony\Framework\WebBundle\Listener\ExceptionHandler, handle)" processed the event "core.exception" DEBUG: Notifying (filter) event "core.response" to listener "(Symfony\Framework\WebBundle\Listener\ResponseFilter, filter)" DEBUG: Notifying (filter) event "core.response" to listener "(Symfony\Framework\WebBundle\Debug\DataCollector\DataCollectorManager, handle)" DEBUG: Notifying (filter) event "core.response" to listener "(Symfony\Framework\WebBundle\Debug\WebDebugToolbar, handle)"

Security

XSS / CSRF / SQL Injection

Functional Tests

$client = $this->createClient();

$crawler = $client->request( 'GET', '/hello/Fabien');

$this->assertTrue($crawler->filter( 'html:contains("Hello Fabien")')->count());

$this->assertEquals( 10, $crawler->filter('div.hentry')->count());

$this->assertTrue( $client->getResponse()->isSuccessful());

$crawler = $client->request( 'GET', 'hello/Lucas' );

$link = $crawler->selectLink("Greet Lucas");

$client->click($link);

$form = $crawler->selectButton('submit');

$client->submit($form, array( 'name' => 'Lucas', 'country' => 'France', 'like_symfony' => true, 'photo' => '/path/to/lucas.jpg', ));

$harry = $this->createClient(); $sally = $this->createClient();

$harry->request('POST', '/say/sally/Hello'); $sally->request('GET', '/messages');

$this->assertEquals(201, $harry->getResponse()->getStatusCode());

$this->assertRegExp('/Hello/', $sally->getResponse()->getContent());

$harry = $this->createClient(); $sally = $this->createClient();

$harry->insulate(); $sally->insulate();

$harry->request('POST', '/say/sally/Hello'); $sally->request('GET', '/messages');

$this->assertEquals(201, $harry->getResponse()->getStatusCode()); $this->assertRegExp('/Hello/', $sally->getResponse()->getContent());

Caching

HTTP Expiration / HTTP Validation

$response->setSharedMaxAge(...); $response->setTtl(...); $response->setMaxAge(...); $response->setClientTtl(...); $response->setExpires(...);

$response->setETag(...); $response->setLastModified(...);

Cache-Control: s-maxage=10

public function showAction() { // ...

$response = $this->render('...', $vars);

$response->setSharedMaxAge(10);

return $response; }

Symfony 2 comes built-in with an HTTP accelerator

cacheable for 10 seconds cacheable for 5 seconds

main controller

embedded controller

layout

<?php $view->extend('...:layout') ?>

<?php $view['slots']->start('sidebar') ?>

<?php echo $view['actions']->render('...:foo') ?>

<?php $view['slots']->stop() ?>

cacheable for 10 seconds

cacheable for 5 seconds

$view['actions']->render('HelloBundle:Hello:foo', array('name' => $name), array('standalone' => true) )

<esi:include src="..." />

ESI… or Edge Side Includes

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Symfony2 app

Web Server

Requests

Response

Symfony2 app

Symfony2 HTTP proxy

Web Server

Requests

Response

Symfony2 app

Web Server

Reverse proxy

Requests

Response

Extensibility

Request

Response

core.controller

core.response

core.view

core.request

getController()

getArguments()

Request

Response

core.controller

core.response

core.view

core.request

getController()

getArguments()

core.exception

HttpFoundation

HttpKernel

FrameworkBundle

Routing

Console

SwiftmailerBundle

TwigBundle

DependencyInjection

Components

Bundles

Event Dispatcher

Templating

DoctrineBundle

ZendBundle

Questions?

Symfony2 - WebExpo 2010

Technology

- Webexpo 2010

Breaking the Cell #WebExpo

Mobilní vývoj ve Flexu (WebExpo 2011)

Imagga @ Founders Stories, WebExpo Prague 2013

GTS platforma pro vyvojáře webexpo 2012

Connected Life - WebExpo

Symfony2 - Reloaded

Přidej vejce – WebExpo 2011

Symfony2 Presentation

Creating Clean Code with AOP (WebExpo 2010)

Webexpo 2010

Symfony2 - WebExpo 2010

Roman Appeltauer: #zavicekonverzi na WebExpo

Z praxe mobilního webdesignu (Webexpo 2011)

Symfony2 Introducción

Introducing symfony2

WebExpo Forum 2010

Nové vzdělání pro novou éru @ WEBEXPO 2010

Drupal8 & Symfony2

Symfony2 start