DowngradeArrowFunctionNeverReturnTypeRector
Remove "never" return type from arrow functions, which PHP 8.1 rejects at compile time
-$callable = fn (): never => throw new \RuntimeException();
+$callable = fn () => throw new \RuntimeException();Configure your rector.php:
<?php
use Rector\Config\RectorConfig;
use Rector\DowngradePhp82\Rector\ArrowFunction\DowngradeArrowFunctionNeverReturnTypeRector;
return RectorConfig::configure()
->withRules([
DowngradeArrowFunctionNeverReturnTypeRector::class,
]);
