PHP Manual: The DOMNodeList class

Class synopsis

DOMNodeList

implements IteratorAggregate Countable

/* Properties */

public readonly int $length;

/* Methods */

public int count()

public Iterator getIterator()

public DOMElementDOMNodeDOMNameSpaceNodenull item(int $index)

length: The number of nodes in the list. The range of valid child node indices is 0 to length - 1 inclusive.

Version	Description
8.0.0	DOMNodeList implements IteratorAggregate now. Previously, Traversable was implemented instead.
7.2.0	The Countable interface is implemented and returns the value of the length property.

Note: Nodes in the list can be accessed by array syntax.