xml_parser_create_ns() creates a new XML parser with XML namespace support and returns a resource handle referencing it to be used by the other XML functions.
With a namespace aware parser tag parameters passed to the various handler functions will consist of namespace and tag name separated by the string specified in seperator or ':' by default.
The optional encoding specifies the character encoding of the XML input to be parsed. Supported encodings are "ISO-8859-1", which is also the default if no encoding is specified, "UTF-8" and "US-ASCII".
See also xml_parser_create(), and xml_parser_free().