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:

// no change

PHP snippet to change

<?php

namespace Alpha {
	class X
	{
    	public $var1;
        public $var2;
	}

    class Y extends X
    {
        public function setVarOne ($val): void
        {
            $this->var1 = $val;
        }
    }
    
	class Z extends Y
	{
	    public function setVatTwo ($val): void
	    {
	        $this->var2 = $val;
	    }
	}
}

Config rector.php

<?php

use Rector\Config\RectorConfig;
use Rector\TypeDeclaration\Rector\Property\TypedPropertyFromAssignsRector;
use Rector\ValueObject\PhpVersion;

return RectorConfig::configure()
    ->withRules([
        Rector\CodeQuality\Rector\Class_\CompleteDynamicPropertiesRector::class
    ])
    // demonstrate specific PHP version
    ->withPhpSets (
                       php83: true,
                   );

Rector version: 2.5.7 - released at 2026-07-13 15:49