Symfony Components and its ecosystem

Overview of Symfony components, their evolution and use cases.

Talk given for the Seattle PHP User Group
https://www.meetup.com/seaphp/events/238913883/

Transcript

1. SYMFONY COMPONENTS ALBERT JESSURUM
2. NOT THE ONLY KID IN THE BLOCK https://hoa-project.net http://auraphp.com/ https://thephpleague.com/ https://packages.zendframework.com/ https://github.com/ziadoz/awesome-php AND MANY MORE...
3. IF YOU KNOW WHAT FRAMEWORK YOU'RE GOING TO USE BEFORE SOMEONE DESCRIBES THE PROBLEM THAT YOU'RE GOING TO SOLVE, YOU'RE DOING IT WRONG http://blog.ircmaxell.com/2012/01/microphp-fallacy.html ~ ANTHONY FERRARA (@IRCMAXELL)
4. THIS IS NOT A SYMFONY TALK
5. THIS IS NOT A PHP TALK
6. USE THE BEST TOOL FOR THE JOB
7. Asset BrowserKit Cache ClassLoader Config Console CssSelector Debug DependencyInjection Dotenv DomCrawler EventDispatcher ExpressionLanguage Filesystem Finder Form HttpFoundation HttpKernel Intl Ldap OptionsResolver Process PropertyAccess PropertyInfo Routing Security Serializer Stopwatch Templating Translation Validator VarDumper Workflow Yaml PHPUnit Bridge
8. Asset BrowserKit Cache ClassLoader Config Console CssSelector Debug DependencyInjection Dotenv DomCrawler EventDispatcher ExpressionLanguage Filesystem Finder Form HttpFoundation HttpKernel Intl Ldap OptionsResolver Process PropertyAccess PropertyInfo Routing Security Serializer Stopwatch Templating Translation Validator VarDumper Workflow Yaml PHPUnit Bridge
10. TEXT CONSOLE COMPONENT ▸ Any CLI applications ▸ Cron scripts ▸ Batch scripts ▸ Amazing user interaction
13. TEXT DOTENV COMPONENT ▸ The twelve factor app. https://12factor.net/ (highly recommended read!) ▸ Parses .env files ▸ Makes variables parsed available via get_env(), $_ENV or $_SERVER
14. BROWSER KIT, DOMCRAWLER AND CSSSELECTOR COMPONENT CRAWLER TRIO BROWSERKIT ▸ Client to make requests, and interact with the page. ▸ Simple use cases (testing). ▸ Do not as an http client (Use Guzzle). DOMCRAWLER ▸ Allows you to parse and traverse through the DOM with XPATH CSSSELECTOR ▸ jQuery like syntax to parse through the DOMs
15. USE THE BEST TOOL FOR THE JOB ALTERNATIVES
16. TEXT PROPERTYACCESS COMPONENT ▸ Read and write from objects or arrays ▸ Uses string notation ▸ Array: [value] ▸ Object: object.foo ▸ $object->getFoo();
 $object->isFoo();
 $object->hasFoo();
 $object->__get('foo');
 $object->foo;
17. TEXT FINDER COMPONENT ▸ Find files with a fluent interface ▸ Find by name ▸ Exclude files and directories
18. https://speakerdeck.com/hhamon/dont-reinvent-the-wheel-with-symfony2-components // Filter by name $finder->directories()->name('Tests'); $finder->files()->name('*.php'); $finder->files()->name('/\.php$/'); $finder->files()->notName('*.rb'); // Filter by size $finder->files()->size('< 1.5K'); $finder->files()->size('>= 1K')->size('<= 2K'); // Filter by date $finder->date('since yesterday'); // Limiting the depth $finder->depth('== 0'); $finder->depth('< 3');
19. TEXT HTTPFOUNDATION COMPONENT ▸ Object oriented layer for the HTTP specification ▸ Request ▸ Response
20. GET /hello/hugo?p=2 HTTP/1.1 Host: say.hello.com Accept: text/html Accept-Language: fr,fr-fr;q=0.8,en-us;q=0.5,en;q=0.3 Cookie: username=hhamon User-Agent: Mozilla/5.0 Firefox/16.0 $path = $_SERVER['REQUEST_URI']; $page = isset($_GET['p']) ? $_GET['p'] : 1; $cookie = $_COOKIE['username']; $lang = $_SERVER['HTTP_ACCEPT_LANGUAGE']; $agent = $_SERVER['HTTP_USER_AGENT']; Request https://speakerdeck.com/hhamon/dont-reinvent-the-wheel-with-symfony2-components
21. GET /hello/hugo?p=2 HTTP/1.1 Host: say.hello.com Accept: text/html Accept-Language: fr,fr-fr;q=0.8,en-us;q=0.5,en;q=0.3 Cookie: username=hhamon User-Agent: Mozilla/5.0 Firefox/16.0 use Symfony\Component\HttpFoundation\Request; $request = Request::createFromGlobals(); $path = $request->getPathInfo(); $page = $request->query->get('p', 1); $cookie = $request->cookies->get('username'); $lang = $request->getPreferredLanguage(); $agent = $request->server->get('USER_AGENT'); Request https://speakerdeck.com/hhamon/dont-reinvent-the-wheel-with-symfony2-components
22. HTTP/1.1 200 OK Date: Fri, 02 Nov 2012 02:14:17 GMT Cache-Control: private, max-age=90 Set-Cookie: username=anonymous; Content-Type: text/html; charset=UTF-8 Hello Hugo! Response header('HTTP/1.1 200 OK'); header('Cache-Control: private, max-age=90'); setcookie('username', 'anonymous'); echo 'Hello Hugo!'; https://speakerdeck.com/hhamon/dont-reinvent-the-wheel-with-symfony2-components
23. HTTP/1.1 200 OK Date: Fri, 02 Nov 2012 02:14:17 GMT Cache-Control: private, max-age=90 Set-Cookie: username=anonymous; Content-Type: text/html; charset=UTF-8 Hello Hugo! Response use Symfony\Component\HttpFoundation\Cookie; use Symfony\Component\HttpFoundation\Response; $username = new Cookie('username', $name); $response = new Response('Hello Hugo!'); $response->setMaxAge(90); $response->headers->setCookie($username); $response->send(); https://speakerdeck.com/hhamon/dont-reinvent-the-wheel-with-symfony2-components
24. use Symfony\Component\HttpFoundation\Response; $response = new Response(); $response->setCharset('UTF-8'); $response->setEtag('abcdef'); $response->headers->set('Content-Type', 'application/json'); if ($response->isNotModified($request)) { $response->send(); } $response->setContent('{ "name": "John Doe"}'); $response->setStatusCode(200); $response->setPublic(); $response->setSharedMaxAge(3600); $response->prepare($request); $response->send(); Caching https://speakerdeck.com/hhamon/dont-reinvent-the-wheel-with-symfony2-components
25. Session Management use Symfony\Component\HttpFoundation\Session; $storage = new Storage\Handler\NativeSessionStorage(); $session = new Session\Session($storage); $session->start(); // Saving data into the session $session->set('cart', array(1, 2, 3)); $cart = $session->get('cart'); $session->save(); https://speakerdeck.com/hhamon/dont-reinvent-the-wheel-with-symfony2-components
26. TEXT OPTIONSRESOLVER COMPONENT ▸ array_replace on steroids ▸ Required options ▸ Default values ▸ Validation ▸ Normalization
27. TEXT STOPWATCH COMPONENT ▸ Profile code ▸ microtime on steroids
28. TEXT YAML COMPONENT ▸ Loads and dumps YAML files
29. USE COMPONENTS TO COMPOSE YOUR APP
30. NO NEED TO DIVE FULLY INTO A FRAMEWORK IN ALL CASES
31. KEEP THE FRAMEWORK AS AN IMPLEMENTATION DETAIL
32. USEFUL READS: CREATE YOUR OWN FRAMEWORK FROM FLAT PHP TO SYMFONY http://symfony.com/doc/current/introduction/from_flat_php_to_symfony2.html http://symfony.com/doc/current/create_framework/index.html
33. THANKS! QUESTIONS? Albert Jessurum - @ajessu