(PHP 5 >= 5.3.0, PHP 7)
An Iterator that sequentially iterates over all attached iterators
$flags
= MultipleIterator::MIT_NEED_ALL|MultipleIterator::MIT_KEYS_NUMERIC
] )MultipleIterator::MIT_NEED_ANYDo not require all sub iterators to be valid in iteration.
MultipleIterator::MIT_NEED_ALLRequire all sub iterators to be valid in iteration.
MultipleIterator::MIT_KEYS_NUMERICKeys are created from the sub iterators position.
MultipleIterator::MIT_KEYS_ASSOCKeys are created from sub iterators associated information.