HH\KeyedIterator
For those entities that are KeyedTraversable
, the KeyedIterator
interfaces provides the methods of iteration, included being able to get
the key
If a class implements KeyedIterator
, then it provides the infrastructure
to be iterated over using a foreach
loop.
Interface Synopsis
namespace HH {
interface KeyedIterator implements HH\Iterator, HH\KeyedTraversable {...}
}
->key(): Tk
Return the current key at the current iterator position