将关联数组从PHP传递到AS3问题

Question

I'm having a problem with passing my JSON (Converted to Array) data from PHP to ActionScript 3.0 .

Here is my php code:

class myTwitterOAuth {

    public function get_user($username) {

        $oauth = new TwitterOAuth($consumer_key, $consumer_secret, $access_token, $access_token_secret);
        $param = array('screen_name'=>'twitter');
        $data = $oauth->get('users/show', $param);
        $json = json_encode($data);
        $JSONarray=json_decode($json, true);
        return $JSONarray; //To pass the whole Array not working
    }
}

Now for my Action Script Method:

function whenSuccess(res:Object):void{  
    trace(res['name']); //Not working at all Neither name nor screen_name or any
}

Error I'm getting from Adobe Flash:

TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at AS3PHPTesting01_fla::MainTimeline/whenSuccess()

UPDATE

I'm using Amfphp library to communicate between PHP and Action Script. Here is how I'm doing it:

var gateway:String = "http://website/here/Amfphp/index.php";
var connection:NetConnection = new NetConnection();
connection.addEventListener(NetStatusEvent.NET_STATUS, errorConnection);
var res:Responder = new Responder(whenSuccess, whenFail);

connection.connect(gateway);
connection.call('myTwitterOAuth/get_user', res, param);

Answer 1

Tip: Try first to receive your results from the AMFPHP browser. When you receive your data correctly from the webservice in the browser you'll be able to use it in AS3.0.

Answer 2

Try this inside the function whenSuccess to check what you are really receiving

for (var prop in res){
    trace(prop, res[prop]);
}