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 for the input/output in PHP 4. Starting from PHP 5, the input encoding is automatically detected, so that the encoding parameter specifies only the output encoding. In PHP 4, the default output encoding is the same as the input charset. In PHP 5.0.0 and 5.0.1, the default output charset is ISO-8859-1, while in PHP 5.0.2 and upper is UTF-8. The supported encodings are ISO-8859-1, UTF-8 and US-ASCII.
See also xml_parser_create(), and xml_parser_free().