Try Rector Online | Rector - Automated Way to Instantly Upgrade and Refactor any PHP code

Run Rector on your code to see what it can do for you:

 <?php
 /**
  * @throws FailingTooHardException

         --$retries;
 
         goto beginning;
-    }
+    }
+    return null;
 }
 
 class FailingTooHardException extends Exception {}

PHP snippet to change

<?php
/**
 * @throws FailingTooHardException
 */
function retry(int $retries, callable $fn)
{
    beginning:
    try {
        return $fn();
    } catch (Exception $exception) {
        if ($retries === 0) {
            throw new FailingTooHardException('', 0, $exception);
        }

        --$retries;

        goto beginning;
    }
}

class FailingTooHardException extends Exception {}

Applied Rules:

ExplicitReturnNullRector

Not a change you expect?

Create an issue on GitHub
...or to speed up fix – add a test fixture

Config rector.php

<?php

use Rector\Config\RectorConfig;
use Rector\CodeQuality\Rector\ClassMethod\ExplicitReturnNullRector;

return RectorConfig::configure()
    ->withRules([
        ExplicitReturnNullRector::class
    ]);

Rector version: cb73a3 - released at 2026-01-18 16:49