3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { protected $foo = 123; } $foo = new Foo(); $serializedFoo = serialize($foo); $unserializedFoo = unserialize($serializedFoo, ['allowed_classes' => [Foo::class]]); var_dump($serializedFoo, $unserializedFoo);

preferences:
51.46 ms | 402 KiB | 5 Q