(PHP 5 >= 5.3.0)
MultipleIterator::current — Gets the registered iterator instances
Get the registered iterator instances.
本函数还未编写文档，仅有参数列表。
此函数没有参数。
An array of all registered iterator instances, or FALSE if no sub iterator is attached.
A RuntimeException if mode MIT_NEED_ALL is set and at least one attached iterator is not valid. Or an IllegalValueException if a key is NULL and MIT_KEYS_ASSOC is set.