HH\Set::getIterator
Returns an iterator that points to beginning of the current Set
public function getIterator(): KeyedIterator<arraykey, Tv>;
Returns
KeyedIterator<arraykey,Tv>- AKeyedIteratorthat allows you to traverse the currentSet.
Examples
This example shows how to get an iterator from a Set and how to consume it:
$s = Set {'red', 'green', 'blue', 'yellow'};
// Get an iterator for the Set of colors
$iterator = $s->getIterator();
// Print each color using the iterator
while ($iterator->valid()) {
echo $iterator->current()."\n";
$iterator->next();
}