This package is abandoned and no longer maintained. The author suggests using the codeigniter/coding-standard package instead.

CodeIgniter 4 Standard for PHP_CodeSniffer 3.

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v1.1.1 2021-03-05 09:34 UTC

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Last update: 2022-11-03 10:25:27 UTC


The new CodeIgniter Coding Standard is officially published! This switch uses PHP CS Fixer instead of Code Sniffer and applies a lot of changes (most notably, PSR-12 compliance). Visit the repo for more information. This library will remain in place but may not be maintained and is no longer considered compliant with official CodeIgniter 4 framework styles.


CodeIgniter 4 coding standard for use with PHP_CodeSniffer 3.

Version 1

Master Develop
Build Status Build Status
Coverage Status Coverage Status

This is currently a work in progress.

Requested at: codeigniter4/CodeIgniter4#182


PHP_CodeSniffer 3. (3.1.1 or greater).

PHP (7.1 or greater) with mbstring extension.


Composer install

cd /Path/To/MyProject composer require codeigniter4/codeigniter4-standard --dev

Set the phpcs standard path and phpcbf standard path in your editor/plugin config to:


Download install

Download CodeIgniter4-Standard.

Set standard paths to your local filesystem:


Global install

Globally install PHP_CodeSniffer with one of the various methods.

Once complete you should be able to execute phpcs -i on the command line.

You should see something like:-

The installed coding standards are MySource, PEAR, PSR1, PSR2, Squiz and Zend.

Either clone this repository...

git clone -b master --depth 1

or use composer...

composer global require codeigniter4/codeigniter4-standard

or download.

Take note of the paths where they were installed.

Create a symbolic link to the CodeIgniter4-Standard/CodeIgniter4 directory in php_codesniffer/src/Standards/ eg.

ln -s ~/Documents/Projects/CodeIgniter4-Standard/CodeIgniter4 ~/.composer/vendor/squizlabs/php_codesniffer/src/Standards/CodeIgniter4

or copy the CodeIgniter4-Standard/CodeIgniter4 directory to php_codesniffer/src/Standards/

Executing phpcs -i should now show CodeIgniter4 installed eg.

The installed coding standards are CodeIgniter4, MySource, PEAR, PSR1, PSR2, Squiz and Zend.

You should now be able to set 'CodeIgniter4' as the phpcs standard in the plugin/editor/IDE of your choice.

Command line use

Sniffing errors & warnings (reporting).

Single file...

phpcs /Path/To/MyFile.php --standard='/Path/To/CodeIgniter4-Standard/CodeIgniter4/ruleset.xml'

or if globally installed.

phpcs /Path/To/MyFile.php --standard=CodeIgniter4

Directory (recursive).

phpcs /Path/To/MyProject --standard='/Path/To/CodeIgniter4-Standard/CodeIgniter4/ruleset.xml'

or if globally installed.

phpcs /Path/To/MyProject --standard=CodeIgniter4

Fixing fixable errors.

Single file.

phpcbf /Path/To/MyFile.php --standard='/Path/To/CodeIgniter4-Standard/CodeIgniter4/ruleset.xml'

or if globally installed.

phpcbf /Path/To/MyFile.php --standard=CodeIgniter4

Directory (recursive).

phpcbf /Path/To/MyProject --standard='/Path/To/CodeIgniter4-Standard/CodeIgniter4/ruleset.xml'

or if globally installed.

phpcbf /Path/To/MyProject --standard=CodeIgniter4


Thanks to Greg Sherwood, Marc McIntyre, Andy Grunwald, Thomas Ernest and Erik Torsner, for providing open source code which helped me build this standard and a big thanks to Squiz Labs for creating PHP_CodeSniffer.

Thanks to EllisLab for originally creating CodeIgniter and the British Columbia Institute of Technology for continuing the project. Thanks to all the developers and contibutors working on CodeIgniter 4.