Namespace Handler isn't called

[beveled edges]

I'm using the XML functions in PHP 5. The callback function I set for
namespace declarations doesn't get called. Can anyone help me out?
The code is:


$xml = '<addressbook
xmlns:ab="http://www.somewhere.c om/addressbook/">' .
'</addressbook>';
$parser = xml_parser_crea te_ns();

xml_set_element _handler( $parser, 'StartHandler', 'EndHandler' );

/* The handler doesn't get called for some reason */
xml_set_start_n amespace_decl_h andler( $parser, 'NSHandler' );

xml_parse( $parser, $xml, true);
xml_parser_free ( $parser );


function StartHandler( $parser, $name, $attrs ) {
print( 'StartHandler Called<br/>' );
}


function EndHandler( $parser, $name ) {
print( 'EndHandler Called<br/>' );
}


function NSHandler( $parser, $prefix, $uri ) {
print( 'NSHandler Called<br/>' );
}


And the output is:

StartHandler Called
EndHandler Called


I want the output to be

StartHandler Called
EndHandler Called
NSHandler Called


Cheers,
Aeden