Xml Parsing inside a class

[theeclypse]

I have set up xml parsing nicely in my class, but when i come to call the functions, i get an error, saying that it cannot call the handlers. the definitions of the xml handlers is this.

---

$xml_parser = xml_parser_create();

    xml_set_element_handler($xml_parser, "startElementHandler", "endElementHandler");
    xml_set_character_data_handler($xml_parser, "characterDataHandler");

---

all three handlers are inside the class.