paths([ __DIR__.'/app', __DIR__.'/config', __DIR__.'/plugins', __DIR__.'/tests', ]); // this way you add a single rule $ecsConfig->rules([ NoUnusedImportsFixer::class, Symplify\CodingStandard\Fixer\Spacing\StandaloneLinePromotedPropertyFixer::class, PhpCsFixer\Fixer\ClassNotation\ClassAttributesSeparationFixer::class, ]); // this way you can add sets - group of rules $ecsConfig->sets([ // run and fix, one by one // SetList::SPACES, // SetList::ARRAY, SetList::DOCBLOCK, SetList::NAMESPACES, SetList::COMMENTS, // SetList::PSR_12, ]); };