Online PHP editor | refs for 9hVS2

<?php error_reporting(E_ERROR | E_WARNING | E_PARSE); class Definition implements Serializable { private $value; public function __construct($value) { $this->value = $value; } public function serialize() { echo serialize([$this->value])."\n"; return serialize($this->value); } public function unserialize($data) { $this->value = unserialize($data); } } $a=new stdClass(); $d=new Definition($a); var_dump(unserialize(serialize([$d,'This text will appear twice!',$a])));