xslt_set_sax_handler

array(
[document] => 
    array(
        start document handler,
        end document handler
    ),
[element] => 
    array(
        start element handler,
        end element handler
    ),
[namespace] => 
    array(
        start namespace handler,
        end namespace handler
    ),
[comment] => comment handler,
[pi] => processing instruction handler,
[character] => character data handler
)