PHP CS Fixer

Spec sheet

Purpose

PHP CS Fixer detects PHP coding standards problems and fixes them automatically.Read 4 Oct 2026 · cs.symfony.com

Integrations

The documentation provides CI examples for GitHub Actions and GitLab CI, and describes GitLab Code Quality output.Read 4 Oct 2026 · cs.symfony.com

License

The project is released under the MIT license.Read 4 Oct 2026 · cs.symfony.com

Caching and parallelism

Caching is enabled by default for supported installation methods, and the fixer runs in parallel by default.Read 4 Oct 2026 · cs.symfony.com

Custom styles

You can define a team coding style in a configuration file or create custom rules.Read 4 Oct 2026 · cs.symfony.com

Editor support

The site lists native PhpStorm support and dedicated plugins for NetBeans, Sublime Text, Vim, and VS Code.Read 4 Oct 2026 · cs.symfony.com

Installation

The project recommends installing PHP CS Fixer as a Composer development dependency, and also documents Docker, PHIVE, Homebrew, and PHAR installation.Read 4 Oct 2026 · cs.symfony.com

Maintainers

The site credits Fabien Potencier and Dariusz Rumiński with bringing PHP CS Fixer to users.Read 4 Oct 2026 · cs.symfony.com

Modernization

The tool includes rule sets for migrating code toward newer PHP and PHPUnit versions.Read 4 Oct 2026 · cs.symfony.com

Risky rules

Rules that could change code behavior are considered risky, and they are not run by default.Read 4 Oct 2026 · cs.symfony.com

Rule sets

Built-in rule sets include PHP-FIG’s PER Coding Style, Symfony, and PhpCsFixer standards.Read 4 Oct 2026 · cs.symfony.com

Run modes

The `fix` command applies changes, while `check` reports results without changing files.Read 4 Oct 2026 · cs.symfony.com

Security reporting

The project asks users to report security vulnerabilities through its GitHub security advisories and not to publish reports publicly.Read 4 Oct 2026 · github.com

Support and community

The maintainers welcome contributions, bug reports, and feature ideas on GitHub, and direct questions to GitHub Discussions.Read 4 Oct 2026 · cs.symfony.com

Plans and prices

Every PHP CS Fixer plan and price →

Where Specifiction places it

• Code Formatting Tools#25 of 347.5