|false * @refcount 1 */ function class_implements($object_or_class, bool $autoload = true): array|false {} /** * @param object|string $object_or_class * @return array|false * @refcount 1 */ function class_parents($object_or_class, bool $autoload = true): array|false {} /** * @param object|string $object_or_class * @return array|false * @refcount 1 */ function class_uses($object_or_class, bool $autoload = true): array|false {} function spl_autoload(string $class, ?string $file_extensions = null): void {} function spl_autoload_call(string $class): void {} function spl_autoload_extensions(?string $file_extensions = null): string {} function spl_autoload_functions(): array {} function spl_autoload_register(?callable $callback = null, bool $throw = true, bool $prepend = false): bool {} function spl_autoload_unregister(callable $callback): bool {} /** * @return array * @refcount 1 */ function spl_classes(): array {} /** @refcount 1 */ function spl_object_hash(object $object): string {} function spl_object_id(object $object): int {} function iterator_apply(Traversable $iterator, callable $callback, ?array $args = null): int {} function iterator_count(iterable $iterator): int {} function iterator_to_array(iterable $iterator, bool $preserve_keys = true): array {}