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
 
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;

 
 class ChildController extends ParentController
 {
-    public function example(Foo $foo): Response
-    {
-        dump($foo);
+    public function example(): Response
+    {
+        dump($this->foo);
     }
 }

PHP snippet to change

<?php

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;

class ParentController extends AbstractController
{
    public function __construct(private readonly Foo $foo)
    {
    }
}

class ChildController extends ParentController
{
    public function example(Foo $foo): Response
    {
        dump($foo);
    }
}

Applied Rules:

ControllerMethodInjectionToConstructorRector

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\Symfony\CodeQuality\Rector\Class_\ControllerMethodInjectionToConstructorRector;
use Rector\ValueObject\PhpVersion;

return RectorConfig::configure()
	->withRules([
		ControllerMethodInjectionToConstructorRector::class,
	])
    // demonstrate specific PHP version
    ->withPhpVersion(PhpVersion::PHP_81);

Rector version: 3a3942 - released at 2026-03-17 17:46