Silex - Symfony goes micro - Speaker Deck

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• phpBB • Symfony2 • Silex igorw

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Silex Symfony goes micro μ

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Silex is not Symfony

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Microframework

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What? • Bare bones • Routes mapped to controllers • The ‘C’ of ‘MVC’ • REST • Single ﬁle app

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Why?

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Sometimes a full-stack framework is too much for a simple task.

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simple

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What makes silex special?

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• concise • extensible • testable

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• concise • extensible • testable

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• concise • extensible • testable

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• concise • extensible • testable

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• concise • extensible • testable

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Http Kernel Interface

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Response handle(Request $request)

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client

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request client

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reponse client request

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clean

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PSR-0

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Silex is not Symfony

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Silex is a user interface for Symfony

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require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; });

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Phar require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; });

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Application require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; });

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require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; }); Controller

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$app->run();

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RewriteEngine On RewriteBase /some/path RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php [QSA,L]

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server { location / { if (-f $request_filename) { break; } rewrite ^(.*) /index.php last; } location ~ index\.php$ { fastcgi_pass /var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; } }

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Wait a minute!

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Lambdas λ

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$(function () { $("a").click(function (event) { alert("Thanks for visiting!"); }); });

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PHP 5.3

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$f = function ($a, $b) { return $a + $b; }; $f(1, 2);

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lazy $f = function () { exit; };

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nested $f = function () { return function () { return true; }; }; $g = $f(); $value = $g();

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scope $outer = 'world'; $f = function () use ($outer) { $inner = 'hello'; return "$inner $outer"; }; => "hello world"

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scope $helloWorld = function () { $outer = 'world'; $f = function () use ($outer) { $inner = 'hello'; return "$inner $outer"; }; return $f(); }

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passing $output = function ($info) { echo $info."\n"; }; $doStuff = function ($output) { $output('doing some magic'); doMagic(); $output('did some magic'); };

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factory $userFactory = function ($name) { return new User($name); }; // ... $user = $userFactory($_POST['name']);

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Usage

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$app->get('/', function () { return "Hello world!"; });

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Dynamic Routing

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$app->get('/hello/{name}', function ($name) use ($app) { return "Hello ".$app->escape($name); });

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$app->get('/hello/{name}', function ($name) use ($app) { return "Hello ".$app->escape($name); });

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Controllers

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assert $app->get('/blog/{id}', function ($id) { ... }) ->assert('id', '\d+');

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value $app->get('/{page}', function ($page) { ... }) ->value('page', 'index');

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bind $app->get('/', function () { ... }) ->bind('homepage'); $app['url_generator']->generate('homepage')

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bind $app->get('/blog/{id}', function ($id) { ... }) ->bind('blog_post'); $app['url_generator'] ->generate('blog_post', array('id' => $id))

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convert $app->get('/blog/{post}', function (Post $post) { ... }) ->convert('post', function ($post) use ($app) { $id = (int) $post; return $app['posts']->find($id); });

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Before & After

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$app->before(function () { ... }); $app->get('/', function () { ... }); $app->after(function () { ... });

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$app->before(function (Request $request) { $loggedIn = $request ->getSession() ->get('logged_in'); if (!$loggedIn) { return new RedirectResponse('/login'); } });

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$app->after(function (Request $request, Response $response) { // tweak the Response });

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$app->after(function ( Request $request, Response $response, ) use ($app) { $response->headers->set('x-csrf-token', $app['csrf_token']); });

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REST

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• get • post • put • delete • head • options • patch

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$app->get('/posts/{id}', ...); $app->post('/posts', ...); $app->put('/posts/{id}', ...); $app->delete('/post/{id}', ...);

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use Symfony\Component\HttpFoundation\Request; use Symfony\Component\HttpFoundation\Response; $app->post('/message', function (Request $request) { mail( 'me@me.me', 'New message', $request->get('body') ); return new Response('Email has been sent!', 201); });

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Caching

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Error Handling

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use Symfony\Component\HttpFoundation\Response; $app->error(function (\Exception $e, $code) { return new Response('Whoops!', $code); });

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use Symfony\Component\HttpKernel\Exception\NotFoundHttpException; throw new NotFoundHttpException("Could not find what you were looking for.");

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$app->abort(404, "Could not find the thing.");

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$app['debug'] = true;

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Redirecting

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$app->get('/', function () use ($app) { return $app->redirect('/hello'); });

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Pimple

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50 NCLOC

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Symfony2 DIC Pimple

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Symfony2 DIC Pimple Container

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Symfony2 DIC Pimple Container Builder

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Symfony2 DIC Pimple Container Builder Extension

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Symfony2 DIC Pimple Container Builder Extension Loader

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Symfony2 DIC Pimple Container Builder Extension XML/Yaml Loader

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Symfony2 DIC Pimple Container Builder Extension XML/Yaml Compiler Loader

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Symfony2 DIC Pimple Container Builder Extension XML/Yaml Compiler Loader Container

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Symfony2 DIC Pimple Container Builder Extension XML/Yaml Compiler Loader Container ServiceProvider ( )

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$container = new Pimple();

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$app = new Silex\Application();

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Parameters $app['some_parameter'] = 'value'; $app['asset.host'] = 'http://cdn.mysite.com/'; $app['database.dsn'] = 'mysql:dbname=myapp';

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Services $app['some_service'] = function () { return new Service(); };

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$service = $app['some_service'];

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Dependencies $app['some_service'] = function ($app) { return new Service( $app['some_other_service'], $app['some_service.config'] ); };

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Shared $app['some_service'] = $app->share(function () { return new Service(); });

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Protected $app['lambda_parameter'] = $app->protect( function ($a, $b) { return $a + $b; }); // will not execute the lambda $add = $app['lambda_parameter']; // calling it now echo $add(2, 3);

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Exposed Services • debug • request • autoloader • routes • controllers • dispatcher • resolver • kernel

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Service Providers

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interface ServiceProviderInterface { function register(Application $app); }

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Core Service Providers • doctrine • form • http cache • monolog • session • swiftmailer • symfony bridges • translation • twig • url generator • validator

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Twig

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$app->register( new Silex\ServiceProvider\TwigServiceProvider(), array( 'twig.path' => __DIR__.'/views', 'twig.class_path' => __DIR__.'/vendor/twig/lib', ) );

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$app->get('/', function () use ($app) { return $app['twig']->render('hello.twig'); });

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3rd Party • doctrine orm • pomm (postgres) • predis • mongo • KyotoTycoon • memcache • rest • markdown • gravatar • buzz • conﬁg • solr • proﬁler • ...

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Functional Testing

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• src • app.php • web • index.php • tests • bootstrap.php • YourTest.php

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src/app.php require_once __DIR__.'/../vendor/silex.phar'; ... return $app;

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web/index.php $app = require_once __DIR__.'/../src/app.php'; $app->run();

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tests/bootstrap.php require_once __DIR__.'/../vendor/silex.phar';

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use Silex\WebTestCase; class YourTest extends WebTestCase { public function createApp() { return require __DIR__.'/../src/app.php'; } // tests... } tests/YourTest.php

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public function testAbout() { $client = $this->createClient(); $client->request('GET', '/about'); $response = $client->getResponse(); $this->assertTrue($response->isOk()); $this->assertContains('trashbin', $response->getContent()); $this->assertContains('github', $response->getContent()); $this->assertContains('igorw', $response->getContent()); }

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phpunit.xml.dist ./tests/

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$ phpunit

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• smallish sites • well-deﬁned scope • prototyping • restful apis When to use

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and many more...

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The future

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The future • Cookbooks

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The future • Cookbooks • Best practices

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The future • Cookbooks • Best practices • Symfony2 integration

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The future • Cookbooks • Best practices • Symfony2 integration • FOSUserBundle

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The future • Cookbooks • Best practices • Symfony2 integration • FOSUserBundle • Composer

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on github fabpot/Silex fabpot/Pimple

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silex.sensiolabs.org

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Ω

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Questions? joind.in/3699 @igorwesome speakerdeck.com /u/igorw