GuardedPropertyToGuardedAttributeRector

Find another rule

Changes model guarded property to use the guarded attribute

 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Attributes\Guarded;

+#[Guarded(['is_admin'])]
 class User extends Model
 {
-    protected $guarded = [
-        'is_admin',
-    ];
 }

Configure your rector.php:

<?php

use RectorLaravel\Rector\Class_\GuardedPropertyToGuardedAttributeRector;
use Rector\Config\RectorConfig;

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