&reftitle.constants; &extension.constants; Constant Value Description XML_ELEMENT_NODE (integer) 1 Node is an element XML_ATTRIBUTE_NODE (integer) 2 Node is an attribute XML_TEXT_NODE (integer) 3 Node is a piece of text XML_CDATA_SECTION_NODE (integer) 4 XML_ENTITY_REF_NODE (integer) 5 XML_ENTITY_NODE (integer) 6 Node is an entity like   XML_PI_NODE (integer) 7 Node is a processing instruction XML_COMMENT_NODE (integer) 8 Node is a comment XML_DOCUMENT_NODE (integer) 9 Node is a document XML_DOCUMENT_TYPE_NODE (integer) 10 XML_DOCUMENT_FRAG_NODE (integer) 11 XML_NOTATION_NODE (integer) 12 XML_GLOBAL_NAMESPACE (integer) 1 XML_LOCAL_NAMESPACE (integer) 2 XML_HTML_DOCUMENT_NODE (integer) XML_DTD_NODE (integer) XML_ELEMENT_DECL_NODE (integer) XML_ATTRIBUTE_DECL_NODE (integer) XML_ENTITY_DECL_NODE (integer) XML_NAMESPACE_DECL_NODE (integer) XML_ATTRIBUTE_CDATA (integer) XML_ATTRIBUTE_ID (integer) XML_ATTRIBUTE_IDREF (integer) XML_ATTRIBUTE_IDREFS (integer) XML_ATTRIBUTE_ENTITY (integer) XML_ATTRIBUTE_NMTOKEN (integer) XML_ATTRIBUTE_NMTOKENS (integer) XML_ATTRIBUTE_ENUMERATION (integer) XML_ATTRIBUTE_NOTATION (integer) XPATH_UNDEFINED (integer) XPATH_NODESET (integer) XPATH_BOOLEAN (integer) XPATH_NUMBER (integer) XPATH_STRING (integer) XPATH_POINT (integer) XPATH_RANGE (integer) XPATH_LOCATIONSET (integer) XPATH_USERS (integer) XPATH_NUMBER (integer)