PHP_CodeSniffer rules (sniffs) for Acquia coding standards

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v2.0.0 2023-03-06 17:49 UTC


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Acquia Coding Standards for PHP is a collection of PHP_CodeSniffer rules (sniffs) for Acquia coding standards for PHP projects, including Drupal extensions.


Acquia Coding Standards for PHP includes a selection of sniffs from the following rulesets:


Rules are split into rulesets according to the project language and framework:

  • AcquiaPHP contains sniffs applicable to all PHP projects.
  • AcquiaDrupalStrict incorporates AcquiaPHP and adds all Drupal coding standards and best practices sniffs. Recommended for new Drupal projects and teams familiar with Drupal coding standards.
  • AcquiaDrupalTransitional incorporates AcquiaPHP and adds Drupal core's own phpcs configuration, which is less strict than the official standards. Recommended for legacy Drupal codebases or teams new to Drupal coding standards.
  • AcquiaEdge incorporates AcquiaPHP and adds backwards-incompatible sniffs that will be included in AcquiaPHP with the next major release of this package.

Installation & usage

  1. Add Acquia Coding Standards for PHP to your project via Composer:

    composer require --dev acquia/coding-standards
  2. Inform PHP CodeSniffer of the location of the standard and its dependencies:

    • It is strongly recommended that you use a Composer plugin to handle this for you, e.g., DealerDirect/phpcodesniffer-composer-installer:

      composer config extra.phpcodesniffer-search-depth 4
      composer require --dev dealerdirect/phpcodesniffer-composer-installer
    • Alternatively, add a script to your composer.json to handle it:

          "scripts": {
              "post-install-cmd": "@install-coding-standards",
              "post-update-cmd" : "@install-coding-standards",
              "install-coding-standards": "\"vendor/bin/phpcs\" --config-set installed_paths vendor/acquia/coding-standards/src/Standards,vendor/drupal/coder/coder_sniffer,vendor/phpcompatibility/php-compatibility,vendor/slevomat/coding-standard"
  3. Check code for standards compliance:

    ./vendor/bin/phpcs --standard=AcquiaDrupalStrict --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml path/to/code

    Automatically fix any standards violations possible:

    ./vendor/bin/phpcbf --standard=AcquiaDrupalStrict --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml path/to/code

    The --extensions argument must match the chosen code standard. For AcquiaPHP, use --extensions=php,inc,test,css,txt,md,yml.

  4. Optionally create a default configuration file for your project so you don't have to provide the command-line arguments every time (i.e., below). Here's a working example: example/phpcs.xml.dist.


    Modify phpcs.xml.dist to suit your project, especially to set the preferred code standard and matching extensions.

  5. Optionally add code checking to your Git pre-commit hook to prevent committing code with violations. Since client-side Git hooks are not copied when a repository is cloned, you might like to use an automated solution like BrainMaestro/composer-git-hooks to manage them, for example: example/composer.json.

  6. Optionally configure PHP Code Sniffer integration in PhpStorm or your IDE or code editor of choice. You can import example/PhpStormInspections.xml to set up default integration for new projects. When you open or create a new project for the first time, PhpStorm should automatically detect and set up PHPCS inspections based on these defaults. You will just need to uncheck the “installed standards paths” in the inspection settings for your project so that PhpStorm can find the Acquia Coding Standards.


Contributions are welcome! See


Copyright (C) 2019 Acquia, Inc.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.