How to Send AS3 data to CakePHP

I'm wondering how to send data from AS3 to CakePHP. I k开发者_开发技巧now I can use URLVariables to send data to the URLRequest and ge that data in PHP using the superglobal $_POST. However, for some reason I can't access the variables in a CakePHP action.

In my action I get the data using the following:

    echo json_encode(array("response_type" => $responseType,"response" => $response, "data" => $_POST));

but this is what I get in return:

{"response_type":"Error","response":"Data was not sent!","data":[]}

Note: I have set responeType to "Error" and response to "Data was not.." manually.

In AS3 this is what I do:

    var request:URLRequest = new URLRequest(url);
    request.method = URLRequestMethod.POST;
    request.data = params;

    loader = new URLLoader();

    executeRequest(loader, request);

And this is what I send as my object:

{facebookID:"25"}

try using URLVariables (as in example)