AddParamArrayDocblockFromAssignsParamToParamReferenceRector

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Add @param docblock array type, based on type to assigned parameter reference

 final class SomeClass
 {
+    /**
+     * @param string[] $names
+     */
     public function run(array &$names): void
     {
         $names[] = 'John';
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\TypeDeclarationDocblocks\Rector\ClassMethod\AddParamArrayDocblockFromAssignsParamToParamReferenceRector;

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