AddReturnTypeDeclarationBasedOnParentClassMethodRector

Add missing return type declaration based on parent class method

 class A
 {
     public function execute(): int
     {
     }
 }

 class B extends A{
-    public function execute()
+    public function execute(): int
     {
     }
 }

Configure your rector.php:

<?php

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

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