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:

 final class OptionProcessor {
     public function run(WithConstInterface $option): string
     {
-        return $option::NAME;
+        return \WithConstInterface::NAME;
     }
 }

PHP snippet to change

<?php

interface WithConstInterface {
    public const NAME='undefined';
}

class Option1 implements WithConstInterface {
    public const NAME='OPTION-1';
}

class Option2 implements WithConstInterface {
    public const NAME='OPTION-2';
}

final class OptionProcessor {
    public function run(WithConstInterface $option): string
    {
        return $option::NAME;
    }
}

Applied Rules:

VariableConstFetchToClassConstFetchRector

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\CodeQuality\Rector\ClassConstFetch\VariableConstFetchToClassConstFetchRector;
use Rector\Config\RectorConfig;

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

Rector version: b09565 - released at 2026-05-25 06:37