(PHP 5 >= 5.1.0, PHP 7)
IteratorIterator::__construct — Create an iterator from anything that is traversable
public IteratorIterator::__construct ( Traversable $iterator )
Creates an iterator from anything that is traversable.
iterator
The traversable iterator.
No value is returned.
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https://www.php.net/manual/en/iteratoriterator.construct.php