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
 
 final class DemoFile
 {
-    private function example($value): array
-    {
-        return get_defined_vars();
+    private function example(): array
+    {
+        return get_defined_vars();
     }
 }

PHP snippet to change

<?php

final class DemoFile
{
    private function example($value): array
    {
        return get_defined_vars();
    }
}

Applied Rules:

RemoveUnusedPrivateMethodParameterRector

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\TypeDeclaration\Rector\Property\TypedPropertyFromAssignsRector;
use Rector\ValueObject\PhpVersion;

return RectorConfig::configure()
    ->withDeadCodeLevel(43);

Rector version: 6a3101 - released at 2026-02-10 12:09