Silex (phpday) - Speaker Deck

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• phpBB • Symfony2 • Silex • Composer igorw @igorwesome

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$s=stream_socket_server('tcp://127.0.0.1:81'); while($c=stream_socket_accept($s)) fwrite($c,"HTTP/1.1 200 OK\r\nContent-Length: 2\r\n\r\nHi");

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require __DIR__.'/c.php'; if (!is_callable($c = @$_GET['c'] ?: function() { echo 'Woah!'; })) throw new Exception('Error'); $c();

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Silex Symfony2 μ-framework

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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 (ish)

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

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Composer require_once 'vendor/autoload.php'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; });

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

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require_once 'vendor/autoload.php'; $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 { index index.php location / { try_files $uri $uri/ /index.php; } location ~ index\.php$ { 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").on("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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event listener $emitter = new EventEmitter(); $emitter->on('user.create', function (User $user) { $msg = sprintf("User %s created.", $user->name); log($msg); });

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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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Methods

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

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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( '[email protected]', '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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$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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$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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3rd Party • doctrine orm • propel • pomm (postgres) • predis • mongo • KyotoTycoon • memcache • rest • markdown • gravatar • buzz • conﬁg • solr • proﬁler • ...

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Redis

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$app->register(new PredisServiceProvider());

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$app->get('/{id}', function ($id) use ($app) { $key = 'pastes:'.$id; $paste = $app['predis']->hgetall($key); ... });

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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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New feature: Streaming

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$app->get('/some-video', function () use ($app) { $file = $app['app.video_filename']; $stream = function () use ($file) { readfile($file); }; return $app->stream( $stream, 200, array('Content-Type' => 'video/mpeg') ); });

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New feature: Middlewares

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$mustBeLogged = function (Request $request) use ($app) { if (!$app['session']->has('userId')) { return $app->redirect('/user/login'); } }; $app->get('/user/my-profile', function () { ... }) ->middleware($mustBeLogged);

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New feature: JSON helper

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$app->get('/users/{id}', function ($id) use ($app) { $user = getUser($id); if (!$user) { $message = 'The user was not found.'; $error = array('message' => $message); return $app->json($error, 404); } return $app->json($user); });

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New feature: Finish ﬁlter

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$app->finish(function () { // send e-mails // very slow query // some slow API calls });

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New feature: Composer

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{ "minimum-stability": "dev", "require": { "silex/silex": "1.0.*@dev" } } composer.json

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$ php composer.phar install

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require 'vendor/autoload.php';

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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/6391 @igorwesome speakerdeck.com /u/igorw