WARNING: You are browsing the documentation for Symfony 2.1 which is not maintained anymore. Consider upgrading your projects to Symfony 5.1.

Symfony Components

The Components implement common features needed to develop websites. They are the foundation of the Symfony full-stack framework, but they can also be used standalone even if you don't use the framework as they don't have any mandatory dependencies.

2.1 version

Maintained

3.4 4.4 5.1 current 5.2 master

Unmaintained

2.0 2.2 2.3 2.4 2.5 2.6 2.7 2.8 3.0 3.1 3.2 3.3 4.0 4.1 4.2 4.3 5.0

The Components¶

How to Install and Use the Symfony2 Components
Class Loader
- The ClassLoader Component
Config
- The Config Component
- Loading resources
- Caching based on resources
- Defining and processing configuration values
Console
- The Console Component
- Using Console Commands, Shortcuts and Built-in Commands
- Building a Single Command Application
- The Console Helpers
CSS Selector
- The CssSelector Component
Dependency Injection
- The Dependency Injection Component
- Types of Injection
- Introduction to Parameters
- Working with Container Service Definitions
- Compiling the Container
- Working with Tagged Services
- Using a Factory to Create Services
- Configuring Services with a Service Configurator
- Managing Common Dependencies with Parent Services
- Advanced Container Configuration
- Container Building Workflow
DOM Crawler
- The DomCrawler Component
Event Dispatcher
- The Event Dispatcher Component
- The Container Aware Event Dispatcher
- The Generic Event Object
- The Immutable Event Dispatcher
Filesystem
- The Filesystem Component
Finder
- The Finder Component
Form
- The Form Component
HTTP Foundation
- The HttpFoundation Component
- Session Management
- Configuring Sessions and Save Handlers
- Testing with Sessions
- Trusting Proxies
HTTP Kernel
- The HttpKernel Component
Locale
- The Locale Component
Options Resolver
- The OptionsResolver Component
Process
- The Process Component
Routing
- The Routing Component
Serializer
- The Serializer Component
Security
- The Security Component
- The Firewall and Security Context
- Authentication
- Authorization
Templating
- The Templating Component
Yaml
- The YAML Component
- The YAML Format

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