DOMNamedNodeMap::item
(PHP 5, PHP 7, PHP 8)
DOMNamedNodeMap::item — Retrieves a node specified by index
說明
   Retrieves a node specified by index within the 
   DOMNamedNodeMap object.
  
參數
- 
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).