PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standards.

Implement event systems, signal slots, intercepting filters, and observers.

Assertions to validate method input/output with nice error messages.

Twig, the flexible, fast, and secure template language for PHP

Loads and dumps YAML files

Provides a development tool that gives detailed information about the execution of any request

Provides mechanisms for walking through any arbitrary PHP variable

Provides tools to validate values

Provides a tight integration of Twig into the Symfony full-stack framework

Provides integration for Twig with various Symfony components

Provides tools to internationalize your application

Give thanks (in the form of a GitHub ★) to your fellow PHP package maintainers (not limited to Symfony components)!

The Symfony PHP framework

Provides a way to profile code

A Symfony Pack for Symfony Serializer

Handles serializing and deserializing data structures, including object graphs, into array structures or other formats like XML and JSON.

Provides a tight integration of the Security component into the Symfony full-stack framework

Provides a complete security system for your web application

Maps an HTTP request to a set of configuration variables

Extracts information about PHP class' properties using metadata of popular sources

Provides functions to read and write from/to an object or array using a simple string notation

A Symfony Pack for Symfony profiler

Executes commands in sub-processes

Symfony utilities for portability of PHP codes

Symfony polyfill for the Mbstring extension

Symfony polyfill for intl's ICU-related data and classes

Symfony polyfill backporting apcu_* functions to lower PHP versions

Provides utilities for PHPUnit, especially user deprecation notices management

A Symfony Pack for Doctrine ORM