Creating custom rules
If you need to enforce some specific code style rules, you can implement your own fixers.
For each rule you want to add, create a class that implements `PhpCsFixer\Fixer\FixerInterface <./src/Fixer/FixerInterface.php>`_. Note that there is a specific constraint regarding custom rules names: they must match the pattern ``/^[A-Z][a-zA-Z0-9]*\/[a-z][a-z0-9_]*$/``.
Then register your custom fixers and enable them in the config file
.. code-block:: php <?php // ... return (new PhpCsFixer\Config()) // ... ->registerCustomFixers([ new CustomerFixer1(), new CustomerFixer2(), ]) ->setRules([ // ... 'YourVendorName/custome_rule' => true, 'YourVendorName/custome_rule_2' => true, ]) ; There are several interfaces that your fixers can also implement if needed:
`PhpCsFixer\Fixer\DefinedFixerInterface <./src/Fixer/DefinedFixerInterface.php>`_: allows to describe what the fixer does in details; `PhpCsFixer\Fixer\WhitespacesAwareFixerInterface <./src/Fixer/WhitespacesAwareFixerInterface.php>`_: for fixers that need to know the configured indentation and line endings; `PhpCsFixer\Fixer\ConfigurableFixerInterface <./src/Fixer/ConfigurableFixerInterface.php>`_: to create a configurable fixer; `PhpCsFixer\Fixer\DeprecatedFixerInterface <./src/Fixer/DeprecatedFixerInterface.php>`_: to deprecate a fixer.