*/ class SplStack extends \SplStack implements Serializable { /** * Serialize to an array representing the stack * * @return list */ public function toArray() { $array = []; foreach ($this as $item) { $array[] = $item; } return $array; } /** * Serialize * * @return string */ #[ReturnTypeWillChange] public function serialize() { return serialize($this->__serialize()); } /** * Magic method used for serializing of an instance. * * @return list */ #[ReturnTypeWillChange] public function __serialize() { return $this->toArray(); } /** * Unserialize * * @param string $data * @return void */ #[ReturnTypeWillChange] public function unserialize($data) { $toUnserialize = unserialize($data); if (! is_array($toUnserialize)) { throw new UnexpectedValueException(sprintf( 'Cannot deserialize %s instance; corrupt serialization data', self::class )); } $this->__unserialize($toUnserialize); } /** * Magic method used to rebuild an instance. * * @param array $data Data array. * @return void */ #[ReturnTypeWillChange] public function __unserialize($data) { foreach ($data as $item) { $this->unshift($item); } } }