Silex (phpday)

Transcript

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2. • phpBB
   • Symfony2
   • Silex
   • Composer
   igorw
   @igorwesome
   

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

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

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6. Silex
   Symfony2 μ-framework
   

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7. Silex is not Symfony
   

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8. Microframework
   

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10. What?
    • Bare bones
    • Routes mapped to controllers
    • The ‘C’ of ‘MVC’
    • REST
    • Single file app (ish)
    

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11. Why?
    

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

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13. simple
    

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14. What makes silex
    special?
    

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15. • concise
    • extensible
    • testable
    

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16. • concise
    • extensible
    • testable
    

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17. • concise
    • extensible
    • testable
    

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18. • concise
    • extensible
    • testable
    

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19. • concise
    • extensible
    • testable
    

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20. Http Kernel
    Interface
    

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21. Response handle(Request $request)
    

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22. client
    

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23. request
    client
    

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24. reponse
    client
    request
    

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25. clean
    

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26. PSR-0
    

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28. Silex is not Symfony
    

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29. Silex
    is a user interface for
    Symfony
    

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

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

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

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

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

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

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36. $app->run();
    

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38. 
    RewriteEngine On
    RewriteBase /some/path
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php [QSA,L]
    
    

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39. 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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40. Wait a minute!
    

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41. Lambdas
    λ
    

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

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43. PHP 5.3
    

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

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

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

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

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

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

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

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51. 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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52. Usage
    

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

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54. Dynamic Routing
    

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

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

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57. Controllers
    

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

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

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

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

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62. 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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63. Before & After
    

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

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

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

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67. Methods
    

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68. • get
    • post
    • put
    • delete
    • head
    • options
    

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

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70. 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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71. Caching
    

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72. Error Handling
    

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

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

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75. $app['debug'] = true;
    

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76. Redirecting
    

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

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78. Pimple
    

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79. ~50 NCLOC
    

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80. $container = new Pimple();
    

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81. $app = new Silex\Application();
    

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

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

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84. $service = $app['some_service'];
    

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

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

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87. 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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88. Exposed Services
    • debug
    • request
    • autoloader
    • routes
    • controllers
    • dispatcher
    • resolver
    • kernel
    

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89. Service Providers
    

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

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

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92. 3rd Party
    • doctrine orm
    • propel
    • pomm (postgres)
    • predis
    • mongo
    • KyotoTycoon
    • memcache
    • rest
    • markdown
    • gravatar
    • buzz
    • config
    • solr
    • profiler
    • ...
    

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93. Redis
    

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

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

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

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98. and many more...
    

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100. New feature:
     Streaming
     

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101. $app->get('/some-video', function () use ($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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102. New feature:
     Middlewares
     

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103. $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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104. New feature:
     JSON helper
     

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105. $app->get('/users/{id}', function ($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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106. New feature:
     Finish filter
     

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

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108. New feature:
     Composer
     

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110. {
     "minimum-stability": "dev",
     "require": {
     "silex/silex": "1.0.*@dev"
     }
     }
     composer.json
     

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111. $ php composer.phar install
     

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112. require 'vendor/autoload.php';
     

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113. on github
     fabpot/Silex
     fabpot/Pimple
     

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114. silex.sensiolabs.org
     

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115. Ω
     

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116. Questions?
     joind.in/6391
     @igorwesome
     speakerdeck.com
     /u/igorw
     

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