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
 {
+    /**
+     * @return array<string, false[]>
+     */
     public static function run(): iterable
     {
         return [

PHP snippet to change

<?php

final class DemoFile
{
    public static function run(): iterable
    {
        return [
            'first'  => [true],
            'second' => [false],
        ];
    }
}

Applied Rules:

DocblockReturnArrayFromDirectArrayInstanceRector

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\TypeDeclarationDocblocks\Rector\ClassMethod\DocblockReturnArrayFromDirectArrayInstanceRector;

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

Rector version: c57683 - released at 2026-04-14 12:11