I've just installed AMFPHP and manage to make it work...
My problem is:

I create a recordset
var rs:RecordSet = RecordSet(re.result);
Then pass to a Dataset
myDataSet.dataProvider = rs;
The dataset sent the results to a list component.

All is ok except that the fields are visualized with a comma at the end....

Do you know a way to stop this? Maybe a formatter?