How to determine a function's outer context?

Hi! suppose we have this: class utility { function general_purpose($parm) {

    some_process or
    die("classname::callerfunction error with parm $parm") ;

} } class someclass { var $utility; function someclass() {

    $this->utility = new utility;

} function do_something() {

    $this->utility->general_purpose("what-to-do");

} } Now, is there anyway we can trace that utility::general_purpose() is being called from within someclass::do_something() without explicitely passing a string among utility::general_purpose() parameters? Apart from leading to more compact code writing this would avoid typo errors and give a more accurate tracing system. I am sure it can be done, but I cannot figure out how to do it myself. Thanks Alberto Kiev -- @-_=}{=_-@-_=}{=_-@-_=}{=_-@-_=}{=_-@-_=}{=_-@-_=}{=_-@-_=}{=_-@ LoRd, CaN yOu HeAr Me, LiKe I'm HeArInG yOu? lOrD i'M sHiNiNg... YoU kNoW I AlMoSt LoSt My MiNd, BuT nOw I'm HoMe AnD fReE tHe TeSt, YeS iT iS ThE tEsT, yEs It Is tHe TeSt, YeS iT iS ThE tEsT, yEs It Is.......