Cartographing Symfony Making sense of the Symfony Components when used standalone or in full-stack 

Christian Flothmann @xabbuh Denis Brumann @dbrumann 

Symfony 2.0 Full List of Components BrowserKit ClassLoader Config Console CssSelector DependencyInjection DomCrawler EventDispatcher Filesystem Finder Form HttpFoundation HttpKernel Locale Process Routing Security Serializer Templating Translation Validator Yaml 

Symfony 2.0 Full List of Components BrowserKit ClassLoader Config Console CssSelector DependencyInjection DomCrawler EventDispatcher Filesystem Finder Form HttpFoundation HttpKernel Locale Process Routing Security Serializer Templating Translation Validator Yaml 22 components 

Symfony 5.3 Full List of Components Asset BrowserKit Cache Config Console CssSelector DependencyInjection DomCrawler Dotenv ErrorHandler EventDispatcher ExpressionLanguage Filesystem Finder Form HttpClient HttpFoundation HttpKernel Inflector Intl Ldap Lock Mailer Messenger Mime Notifier OptionsResolver PasswordHasher Process PropertyAccess PropertyInfo RateLimiter Routing Runtime Security Semaphore Serializer Stopwatch String Templating Translation Uid Validator VarDumper VarExporter WebLink Workflow Yaml 

Symfony 5.3 Full List of Components Asset BrowserKit Cache Config Console CssSelector DependencyInjection DomCrawler Dotenv ErrorHandler EventDispatcher ExpressionLanguage Filesystem Finder Form HttpClient HttpFoundation HttpKernel Inflector Intl Ldap Lock Mailer Messenger Mime Notifier OptionsResolver PasswordHasher Process PropertyAccess PropertyInfo RateLimiter Routing Runtime Security Semaphore Serializer Stopwatch String Templating Translation Uid Validator VarDumper VarExporter WebLink Workflow Yaml 28 NEW components
 *compared to Symfony 2.0 

application features framework features utility features core features 

application features framework features utility features thin wrapper for PHP features self contained improve usability/DX/interop 

Core Features Asset BrowserKit Cache Config CssSelector DependencyInjection DomCrawler Console ErrorHandler EventDispatcher ExpressionLanguage Filesystem DotEnv Form HttpClient HttpFoundation Inflector Intl Ldap HttpKernel Mailer Messenger Mime Notifier Lock Finder Process PropertyAccess PropertyInfo Routing Security Semaphore RateLimiter Stopwatch String Templating Translation Serializer OptionsResolver VarExporter Weblink Workflow VarDumper Uid Validator Yaml Runtime PasswordHasher 

core features application features framework features utility features 

core features application features framework features provides basic features few dependencies shared functionality 

Utility Features Asset BrowserKit Cache Config CssSelector DependencyInjection DomCrawler Console ErrorHandler EventDispatcher ExpressionLanguage Filesystem DotEnv Form HttpClient HttpFoundation Inflector Intl Ldap HttpKernel Mailer Messenger Mime Notifier Lock Finder Process PropertyAccess PropertyInfo Routing Security Semaphore RateLimiter Stopwatch String Templating Translation Serializer OptionsResolver VarExporter Weblink Workflow VarDumper Uid Validator Yaml Runtime PasswordHasher 

core features utility features framework features application features 

core features utility features framework features high level functionality extendable help building app-features 

Application Features Asset BrowserKit Cache Config CssSelector DependencyInjection DomCrawler Console ErrorHandler EventDispatcher ExpressionLanguage Filesystem DotEnv Form HttpClient HttpFoundation Inflector Intl Ldap HttpKernel Mailer Messenger Mime Notifier Lock Finder Process PropertyAccess PropertyInfo Routing Security Semaphore RateLimiter Stopwatch String Templating Translation Serializer OptionsResolver VarExporter Weblink Workflow VarDumper Uid Validator Yaml Runtime PasswordHasher 

core features utility features application features framework features 

core features utility features application features provide configurability customizable help run the application 

Framework Features Asset BrowserKit Cache Config CssSelector DependencyInjection DomCrawler Console ErrorHandler EventDispatcher ExpressionLanguage Filesystem DotEnv Form HttpClient HttpFoundation Inflector Intl Ldap HttpKernel Mailer Messenger Mime Notifier Lock Finder Process PropertyAccess PropertyInfo Routing Security Semaphore RateLimiter Stopwatch String Templating Translation Serializer OptionsResolver VarExporter Weblink Workflow VarDumper Uid Validator Yaml Runtime PasswordHasher 

provide configurability customizable help run the application high level functionality extendable help building app-features provides basic features few dependencies shared functionality thin wrapper for PHP features self contained improve usability/DX/interop 

12.534 37.103 9.720 15.659 

12.534 37.103 9.720 15.659 75.016 

core features utility features application features framework features 

core features utility features application features framework features less
 coupled more
 coupled 

core features utility features application features framework features easier
 to set up harder to set up 

core features utility features application features framework features easier
 to set up harder to set up 

core features utility features application features framework features easier
 to set up harder to set up 

core features utility features application features framework features easier
 to set up harder to set up 

core features utility features application features framework features easier to use
 standalone harder to use
 standalone 

core features utility features application features framework features easier to use
 standalone harder to use
 standalone 

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Symfony 2.8 Assets ExpressionLanguage Intl Ldap OptionsResolver PropertyInfo 

Symfony 3.4 Cache DotEnv Inflector WebLink Workflow 

Symfony 4.4 ErrorHandler HttpClient Mailer Messenger Mime Notifier VarExporter 

Symfony 5.3 PasswordHasher RateLimiter Runtime Semaphore String Uid 

Decoupled?! Using Symfony Components standalone is really difficult! 

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Where is Waldo? Why doesn’t Symfony have feature X, Y or Z? 

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Extract components & reuse Evolve abstractions & solidify contracts Identify shared functionalities Start with everything
 in one place 

Thank You!