int xmlReaderMoveToAttributeNumber(xmlReader reader,
reader- the index of the attribute you want to move to (starting at 0)
0- attribute not found
-1- other error
xmlReaderMoveToAttributeNumber() moves the reader to an attribute
of the current element, based on its ordering.
It uses a 0-based numbering system -
0 is the first attribute,
1 is the second, and so on.
<$attrNum = (xmlReaderGetAttributeCount($reader))>
<while $loop lt $attrNum>
<$val = (xmlReaderGetAttributeNumber($reader, $loop))>
Attr $loop is [$val]
The ordering of the attributes as provided by this function might NOT be the same as the ordering of the attributes in the XML document. This is legal, as the ordering of attributes is not significant in a XML document (see section 3.1 of the XML spec).