Actionscript3 - get data from php

Here is an example of it

http://www.permadi.com/tutorial/flashQueryString/indexAs3.html

its nor work to me. i want to get from phpfile

How can I do thiswith actionscript 3 ?

_lv = new LoadVars ();
_lv.onLoad = function () {
      if (!this.faultCode) {
            dovizXML.load ("kurlar.xml");
      } else {
            trace("Bir hata olustu");
      }
};
a = new Date ();
_lv.sendAndLoad("doviz2.php?a=" + getTime (), _lv, "POST");
//
dovizXML = new XML ();
dovizXML.ignoreWhite = true;
dovizXML.onLoad = parsedovizXML;
dovizXML.load ("kurlar.xml");
function parsedovizXML (valid) {
      if (valid) {
            alis = new Array ();
            satis = new Array ();
            parseAll = dovizXML.childNodes[0].childNodes;
            for (i = 0; i < parseAll.length; i++) {
                  allEm = parseAll[i];
                  alis[i] = allEm.attributes.al;
                  satis[i] = allEm.attributes.sat;
            }
            yazdir ();
      } else {
            trace ("XML dosyasinda sorun var");
      }
}
/*Bu veriler bir döngü araciligi ile metin kutularinda
görüntülenir*/
var giris=3
function yazdir () {
      for (k = 0; k < giris; k++) {
            kutua="a"+k;
            kutus="s"+k;;
            _root[kutua].text=alis[k];
            _root[kutus].text=satis[k]+" TL";
      }
}
stop()

this is actionscript 2 code.

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