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

         $this->run($data);
     }
 
+    /**
+     * @param mixed[] $data
+     */
     private function run(array $data)
     {
     }
 }

PHP snippet to change

<?php

final class DemoFile
{	
    public function execute(array $data)
    {
        $data = [];
        $this->run($data);
    }

    private function run(array $data)
    {
    }
}

Applied Rules:

ClassMethodArrayDocblockParamFromLocalCallsRector

Not a change you expect?

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

Config rector.php

<?php

declare(strict_types=1);

use Rector\Config\RectorConfig;
use Rector\TypeDeclarationDocblocks\Rector\Class_\ClassMethodArrayDocblockParamFromLocalCallsRector;

return static function (RectorConfig $rectorConfig): void {
    $rectorConfig->rule(ClassMethodArrayDocblockParamFromLocalCallsRector::class);
};

Rector version: 92ddbf - released at 2026-01-29 00:45