3v4l.org

run code in 500+ PHP versions simultaneously
<?php class ReadonlyWakeupWithReflection { public function __construct(public readonly string $value) {} public function __wakeup(): void { (new \ReflectionProperty($this, 'value'))->setValue($this, 'set by reflection on wakeup'); } } $obj = new ReadonlyWakeupWithReflection('test'); $serialized = serialize($obj); $unserialized = unserialize($serialized); print $unserialized->value;

preferences:
50.39 ms | 725 KiB | 5 Q