Amfphp与Flex交互:读取mysql数据

服务器端代码,amfphp的services目录下建立readData.php文件,代码如下
<?php
    class ReadDB
    {
              function getData()
             {
                  mysql_connect("localhost","root","root");
                  mysql_select_db("mmmm");
                  mysql_query("SET NAMES UTF8");
                  $sql="select * from mmmm";
                  return mysql_query($sql);
             }
    }
?>
flex代码
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" backgroundColor="#FFFFFF">
    <mx:RemoteObject id="myservice" fault="FaultHandler(event)" showBusyCursor="true" source="ReadDB" destination="amfphp">
        <mx:method name="getData" result="ReadHandler(event)" />
    </mx:RemoteObject>
<mx:Script>
        <![CDATA[
            import mx.managers.CursorManager;
            import mx.rpc.events.ResultEvent;
            import mx.rpc.events.FaultEvent;
            //注：错误处理函数
   &nb