ReplaceFetchAllMethodCallRector

Change Doctrine\DBAL\Connection and Doctrine\DBAL\Driver\ResultStatement ->fetchAll() to ->fetchAllAssociative() and other replacements

 use Doctrine\DBAL\Connection;

 class SomeClass
 {
     public function run(Connection $connection)
     {
-        return $connection->fetchAll();
+        return $connection->fetchAllAssociative();
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Doctrine\Dbal211\Rector\MethodCall\ReplaceFetchAllMethodCallRector;

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