(PHP 5, PHP 7, PHP 8)
El número de nodos de la lista. El rango de índices válidos
de nodo hijo es de 0 a length - 1, ambos inclusive.
| Versión | Descripción |
|---|---|
| 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. |