php-cs-fixer

PHP-CS-Fixer is a comprehensive tool that automatically fixes PHP code to follow coding standards and style guidelines. It can repair code style violations and even risky issues, making it an essential formatter for maintaining consistent PHP codebases.

Key Features:

Automatic Code Fixing: Repairs coding standard violations and formatting issues automatically
Extensive Rule Set: 200+ built-in rules covering PSR-1, PSR-2, PSR-12, Symfony, and custom standards
Risky Fixes Support: Can apply potentially risky fixes that modify code behavior when enabled
Highly Configurable: Flexible configuration through PHP configuration files with rule customization
Multiple Standards: Supports PSR standards, Symfony coding standards, and custom rule sets
Dry-Run Mode: Preview changes without modifying files to review proposed fixes
Incremental Fixing: Can target specific directories, files, or rule sets for focused improvements
Performance Optimized: Fast execution with caching capabilities for large codebases

Enable autofixes by adding PHP_PHPCSFIXER in APPLY_FIXES variable
Add "--allow-risky=yes" option in PHP_PHPCSFIXER_ARGUMENTS variable

php-cs-fixer documentation

Version in MegaLinter: 3.83.0
Visit Official Web Site
See How to configure php-cs-fixer rules
- If custom .php-cs-fixer.dist.php config file isn't found, .php-cs-fixer.dist.php will be used
See How to disable php-cs-fixer rules in files
See Index of problems detected by php-cs-fixer

Configuration in MegaLinter

Enable php-cs-fixer by adding PHP_PHPCSFIXER in ENABLE_LINTERS variable
Disable php-cs-fixer by adding PHP_PHPCSFIXER in DISABLE_LINTERS variable

Variable	Description	Default value
PHP_PHPCSFIXER_ARGUMENTS	User custom arguments to add in linter CLI call Ex: `-s --foo "bar"`
PHP_PHPCSFIXER_COMMAND_REMOVE_ARGUMENTS	User custom arguments to remove from command line before calling the linter Ex: `-s --foo "bar"`
PHP_PHPCSFIXER_CLI_LINT_MODE	Override default CLI lint mode ⚠️ As default value is project, overriding might not work - `file`: Calls the linter for each file - `list_of_files`: Call the linter with the list of files as argument - `project`: Call the linter from the root of the project	`project`
PHP_PHPCSFIXER_FILE_EXTENSIONS	Allowed file extensions. `"*"` matches any extension, `""` matches empty extension. Empty list excludes all files Ex: `[".py", ""]`	`[".php"]`
PHP_PHPCSFIXER_FILE_NAMES_REGEX	File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: `["Dockerfile(-.+)?", "Jenkinsfile"]`	Include every file
PHP_PHPCSFIXER_PRE_COMMANDS	List of bash commands to run before the linter	None
PHP_PHPCSFIXER_POST_COMMANDS	List of bash commands to run after the linter	None
PHP_PHPCSFIXER_UNSECURED_ENV_VARIABLES	List of env variables explicitly not filtered before calling PHP_PHPCSFIXER and its pre/post commands	None
PHP_PHPCSFIXER_CONFIG_FILE	php-cs-fixer configuration file nameUse `LINTER_DEFAULT` to let the linter find it	`.php-cs-fixer.dist.php`
PHP_PHPCSFIXER_RULES_PATH	Path where to find linter configuration file	Workspace folder, then MegaLinter default rules
PHP_PHPCSFIXER_DISABLE_ERRORS	Run linter but consider errors as warnings	`false`
PHP_PHPCSFIXER_DISABLE_ERRORS_IF_LESS_THAN	Maximum number of errors allowed	`0`
PHP_PHPCSFIXER_CLI_EXECUTABLE	Override CLI executable	`['php-cs-fixer']`

IDE Integration

Use php-cs-fixer in your favorite IDE to catch errors before MegaLinter !

IDE	Extension Name	Install
netbeans	PHP-CS-Fixer	Visit Web Site
IDEA	php-cs-fixer	Visit Web Site
Sublime Text	sublime-phpcs	Visit Web Site
vim	vim-php-cs-fixer	Visit Web Site
Visual Studio Code	vscode-php-cs-fixer	Visit Web Site

MegaLinter Flavors

This linter is available in the following flavors

Flavor	Description	Embedded linters
all	Default MegaLinter Flavor	126
cupcake	MegaLinter for the most commonly used languages	87
php	Optimized for PHP based projects	54

Behind the scenes

How are identified applicable files

File extensions: .php

How the linting is performed

php-cs-fixer is called once on the whole project directory (project CLI lint mode)

filtering can not be done using MegaLinter configuration variables,it must be done using php-cs-fixer configuration or ignore file (if existing)
VALIDATE_ALL_CODEBASE: false doesn't make php-cs-fixer analyze only updated files

Example calls

php-cs-fixer check myfile.php

php-cs-fixer check mydir

php-cs-fixer check --config .php-cs-fixer.php

Help content

Setting PHP_CS_FIXER_IGNORE_ENV environment variable is deprecated and will be removed in 4.0, use unsupportedPhpVersionAllowed config instead.
Description:
  List commands

Usage:
  list [options] [--] [<namespace>]

Arguments:
  namespace             The namespace name

Options:
      --raw             To output raw command list
      --format=FORMAT   The output format (txt, xml, json, or md) [default: "txt"]
      --short           To skip describing commands' arguments
  -h, --help            Display help for the given command. When no command is given display help for the list command
      --silent          Do not output any message
  -q, --quiet           Only errors are displayed. All other output is suppressed
  -V, --version         Display this application version
      --ansi|--no-ansi  Force (or disable --no-ansi) ANSI output
  -n, --no-interaction  Do not ask any interactive question
  -v|vv|vvv, --verbose  Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

Help:
  The list command lists all commands:

    /root/.composer/vendor/bin/php-cs-fixer list

  You can also display the commands for a specific namespace:

    /root/.composer/vendor/bin/php-cs-fixer list test

  You can also output the information in other formats by using the --format option:

    /root/.composer/vendor/bin/php-cs-fixer list --format=xml

  It's also possible to get raw list of commands (useful for embedding command runner):

    /root/.composer/vendor/bin/php-cs-fixer list --raw

Installation on mega-linter Docker image

Dockerfile commands :

# Parent descriptor install
RUN update-alternatives --install /usr/bin/php php /usr/bin/php84 110
COPY --from=composer/composer:2-bin /composer /usr/bin/composer
ENV PATH="/root/.composer/vendor/bin:${PATH}"
ENV PHP_CS_FIXER_IGNORE_ENV=true
# Linter install
# renovate: datasource=packagist depName=friendsofphp/php-cs-fixer
ARG PHP_FRIENDSOFPHP_PHP_CS_FIXER_VERSION=v3.83.0
RUN GITHUB_AUTH_TOKEN="$(cat /run/secrets/GITHUB_TOKEN)" && export GITHUB_AUTH_TOKEN && composer global require friendsofphp/php-cs-fixer:${PHP_FRIENDSOFPHP_PHP_CS_FIXER_VERSION} --with-all-dependencies