Laminas Coding Standard

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2.3.0 2021-05-29 15:53 UTC


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The coding standard ruleset for Laminas components.

This specification extends and expands PSR-12, the extended coding style guide and requires adherence to PSR-1, the basic coding standard. These are minimal specifications and don't address all factors, including things like:

  • whitespace around operators
  • alignment of array keys and operators
  • alignment of object operations
  • how to format multi-line conditionals
  • what and what not to import, and how
  • etc.

Contributors have different coding styles and so do the maintainers. During code reviews there are regularly discussions about spaces and alignments, where and when was said that a function needs to be imported. And that's where this coding standard comes in: To have internal consistency in a component and between components.


  1. Install the module via composer by running:

    composer require --dev laminas/laminas-coding-standard
  2. Add composer scripts into your composer.json:

    "scripts": {
      "cs-check": "phpcs",
      "cs-fix": "phpcbf"
  3. Create file phpcs.xml on base path of your repository with this content:

    <?xml version="1.0"?>
    <ruleset xmlns:xsi=""
        <arg name="basepath" value="."/>
        <arg name="cache" value=".phpcs-cache"/>
        <arg name="colors"/>
        <arg name="extensions" value="php"/>
        <arg name="parallel" value="80"/>
        <!-- Show progress -->
        <arg value="p"/>
        <!-- Paths to check -->
        <!-- Include all rules from the Laminas Coding Standard -->
        <rule ref="LaminasCodingStandard"/>

You can add or exclude some locations in that file. For a reference please see:


  • To run checks only:

    composer cs-check
  • To automatically fix many CS issues:

    composer cs-fix

Ignoring parts of a File

Note: Before PHP_CodeSniffer version 3.2.0, // @codingStandardsIgnoreStart and // @codingStandardsIgnoreEnd were used. These are deprecated and will be removed in PHP_CodeSniffer version 4.0.

Disable parts of a file:

$xmlPackage = new XMLPackage;
// phpcs:disable
$xmlPackage['error_code'] = get_default_error_code_value();
// phpcs:enable

Disable a specific rule:

// phpcs:disable Generic.Commenting.Todo.Found
$xmlPackage = new XMLPackage;
$xmlPackage['error_code'] = get_default_error_code_value();
// TODO: Add an error message here.
// phpcs:enable

Ignore a specific violation:

$xmlPackage = new XMLPackage;
$xmlPackage['error_code'] = get_default_error_code_value();
// phpcs:ignore Generic.Commenting.Todo.Found
// TODO: Add an error message here.


New rules or Sniffs may not be introduced in minor or bugfix releases and should always be based on the develop branch and queued for the next major release, unless considered a bugfix for existing rules.

If you want to test changes against Laminas components or your own projects, install your forked laminas-coding-standard globally with composer:

$ composer global config repositories.laminas-coding-standard vcs<FORK_NAMESPACE>/laminas-coding-standard.git
$ composer global require --dev laminas/laminas-coding-standard:dev-<FORKED_BRANCH>

# For this to work, add this to your path: ~/.composer/vendor/bin
# Using `-s` prints the rules that triggered the errors so they can be reviewed easily. `-p` is for progress display.
$ phpcs -sp --standard=LaminasCodingStandard src test

Make sure you remove the global installation after testing from your global composer.json file!!!

Documentation can be previewed locally by installing MkDocs and run mkdocs serve. This will start a server where you can read the docs.


Rules can be added, excluded or tweaked locally, depending on your preferences. More information on how to do this can be found here: