(PHP 5)
DOMElement::getElementsByTagNameNS — Get elements by namespaceURI and localName
This function fetch all the descendant elements with a given localName and namespaceURI .
The namespace URI.
The local name. Use * to return all elements within the element tree.
This function returns a new instance of the class DOMNodeList of all matched elements in the order in which they are encountered in a preorder traversal of this element tree.