MediaWiki CodeSniffer Standards

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This project implements a set of rules for use with PHP CodeSniffer.

See MediaWiki conventions on our wiki for a detailed description of the coding conventions that are validated by these rules. :-)

How to install

  1. Create a composer.json which adds this project as a dependency:

    	"require-dev": {
    		"mediawiki/mediawiki-codesniffer": "35.0.0"
    	"scripts": {
    		"test": [
    			"phpcs -p -s"
    		"fix": "phpcbf"
  2. Create a .phpcs.xml with our configuration:

    <?xml version="1.0"?>
    	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki"/>
    	<arg name="bootstrap" value="./vendor/mediawiki/mediawiki-codesniffer/utils/bootstrap-ci.php"/>
    	<arg name="extensions" value="php"/>
    	<arg name="encoding" value="UTF-8"/>
  3. Install: composer update

  4. Run: composer test

  5. Run: composer fix to auto-fix some of the errors, others might need manual intervention.

  6. Commit!

Note that for most MediaWiki projects, we'd also recommend adding a PHP linter to your composer.json – see the full documentation for more details.


  • Migrate the old code-utils/check-vars.php