Rector\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictNewArrayRector

ReturnTypeFromStrictNewArrayRector

Add strict return array type based on created empty array and returned

 final class SomeClass
 {
-    public function run()
+    public function run(): array
     {
         $values = [];

         return $values;
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictNewArrayRector;

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

SETS: Type Declarations