Javascript callback - how to return the result?

Question

I am struggling to totally understand callbacks and i am stumbling at the final hurdle.

Within JS I am calling a function which then calls a PHP function using a doj

Answer 1

A much cleaner answer:

getPhp(number);

function one(data){
    var test = data;
    // do what you want
}

function getPhp(number)
{

    this.serviceBroker = new dojo.rpc.JsonService(baseUrl + '/index/json-rpc/');

    var result = serviceBroker.phpFunc(number);

    result.addCallback(
        function (response)
        {
            if (response.result == 'success')
            {
                one(response.description);
            }
        }
    );
}