Php/docs/domnamednodemap.item
来自菜鸟教程
DOMNamedNodeMap::item
(PHP 5, PHP 7)
DOMNamedNodeMap::item — Retrieves a node specified by index
说明
DOMNamedNodeMap::item
( int $index
) : DOMNode
Retrieves a node specified by index within the
DOMNamedNodeMap object.
参数
index- Index into this map.
返回值
The node at the indexth position in the map, or null
if that is not a valid index (greater than or equal to the number of nodes
in this map).
