phpVersion(\Rector\Core\ValueObject\PhpVersion::PHP_55); $rectorConfig->rule(\Rector\DowngradePhp56\Rector\CallLike\DowngradeArgumentUnpackingRector::class); $rectorConfig->rule(\Rector\DowngradePhp56\Rector\Use_\DowngradeUseFunctionRector::class); $rectorConfig->rule(\Rector\DowngradePhp56\Rector\Pow\DowngradeExponentialAssignmentOperatorRector::class); $rectorConfig->rule(\Rector\DowngradePhp56\Rector\Pow\DowngradeExponentialOperatorRector::class); $rectorConfig->rule(\Rector\DowngradePhp56\Rector\FuncCall\DowngradeArrayFilterUseConstantRector::class); };