parameters(); // paths to refactor; solid alternative to CLI arguments $parameters->set(Option::PATHS, [__DIR__ . '/app', __DIR__ . '/system']); // is there a file you need to skip? $parameters->set(Option::EXCLUDE_PATHS, [ __DIR__ . '/app/Views', __DIR__ . '/system/Debug/Toolbar/Views/toolbar.tpl.php', __DIR__ . '/system/ThirdParty', ]); // Rector relies on autoload setup of your project; Composer autoload is included by default; to add more: $parameters->set(Option::AUTOLOAD_PATHS, [ // autoload specific file __DIR__ . '/system/Test/bootstrap.php', ]); // auto import fully qualified class names $parameters->set(Option::AUTO_IMPORT_NAMES, true); $parameters->set(Option::SKIP, [ // skipped for UnderscoreToCamelCaseVariableNameRector rule // as the underscored variable removed in 4.1 branch UnderscoreToCamelCaseVariableNameRector::class => [__DIR__ . '/system/Autoloader/Autoloader.php'], ]); $parameters->set(Option::ENABLE_CACHE, true); $parameters->set(Option::PHP_VERSION_FEATURES, '7.2'); $services = $containerConfigurator->services(); $services->set(UnderscoreToCamelCaseVariableNameRector::class); $services->set(SimplifyUselessVariableRector::class); $services->set(RemoveAlwaysElseRector::class); $services->set(PassStrictParameterToFunctionParameterRector::class); $services->set(CountArrayToEmptyArrayComparisonRector::class); };