Which PHP DOM object has the getNodePath method?

[gioleoreuming]

I have seen examples of usage of a getNodePath() method on PHP DOM objects.see:http://www.php.net/manual/en/class.domdocument.php#91072However i cannot find the documentation for that method.I have been going around in circles in the DOM Docs.http://www.php.net/manual/en/book.dom.phpAny ideas?