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
 
 namespace SomeORM;

 final class MangedEntity
 {
     /**
-     * @var ?TEntity
-     */
-    public private(set) ?object $entity = null;
-
-    /**
      * @param TEntity $entity
      */
-    public function __construct(object $entity)
-    {
-        $this->entity = $entity;
+    public function __construct(public private(set) ?object $entity)
+    {
     }
 
     /**

PHP snippet to change

<?php

namespace SomeORM;

/**
 * @template TEntity of object
 */
final class MangedEntity
{
    /**
     * @var ?TEntity
     */
    public private(set) ?object $entity = null;

    /**
     * @param TEntity $entity
     */
    public function __construct(object $entity)
    {
        $this->entity = $entity;
    }

    /**
     * @param TEntity $entity
     * @throws EntityNotManaged
     */
    public function remove(object $entity): void
    {
        if ($this->entity !== null && $this->entity !== $entity) {
            throw new EntityNotManaged();
        }

        $this->entity = null;
    }
    
    // other methods
}

Applied Rules:

ClassPropertyAssignToConstructorPromotionRector

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;

return RectorConfig::configure()
    ->withRules([
        Rector\Php80\Rector\Class_\ClassPropertyAssignToConstructorPromotionRector::class
    ]);

Rector version: 15ecbd - released at 2026-07-11 10:04