(PHP 5, PHP 7, PHP 8)
El número de nodos del mapa. El rango de los índice del nodo hijo
válido es de 0 a length - 1 inclusive.
| Versión | Descripción |
|---|---|
| 8.0.0 | The unimplemented methods DOMNamedNodeMap::setNamedItem(), DOMNamedNodeMap::removeNamedItem(), DOMNamedNodeMap::setNamedItemNS() and DOMNamedNodeMap::removeNamedItem() have been removed. |
| 8.0.0 | DOMNamedNodeMap implements IteratorAggregate now. Previously, Traversable was implemented instead. |