The Symfony PHP framework

Dependency Manager for PHP

Guzzle, an extensible PHP HTTP client

Sends your logs to files, sockets, inboxes, databases and various web services

The PHP Unit Testing framework.

A PHP parser written in PHP

PHP Static Analysis Tool - discover bugs in your code without running it!

A tool to automatically fix PHP Coding Standards issues

Base library for a lexer that can be used in Top-Down, Recursive Descent Parsers.

Eases the creation of beautiful and testable command line interfaces

A PSR-5 based resolver of Class names, Types and Structural Element Names

Library that provides collection, processing, and rendering functionality for PHP code coverage information.

Create deep copies (clones) of your objects

Provides tools that allow your application components to communicate with each other by dispatching events and listening to them

Highly opinionated mocking framework for PHP 5.3+

Finds files and directories via an intuitive fluent interface

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

PHP 5.x support for random_bytes() and random_int()

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

PSR-7 HTTP message library

Symfony polyfill for the Mbstring extension

Utility class for timing

Promises/A+ library for PHP with synchronous support

Diff implementation

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

Executes commands in sub-processes