This function creates a new element node with an associated namespace.
This node will not show up in the document unless
it is inserted with (e.g.) DOMNode->appendChild().
Parameters
namespaceURI
The URI of the namespace.
qualifiedName
The qualified name of the element, as prefix:tagname.
value
The value of the element. By default, an empty element will be created.
You can also set the value later with DOMElement->nodeValue.