/*
     * 功能5：根據歌名點歌功能，輸入歌名即可，傳入參數為輸入對象$postObj
     */
    private function _listenMusic($postObj)
    {
        $ret=   "<xml>
            <ToUserName><![CDATA[%s]]></ToUserName>
            <FromUserName><![CDATA[%s]]></FromUserName>
            <CreateTime>%s</CreateTime>
            <MsgType><![CDATA[music]]></MsgType>
            <Music>
            <Title><![CDATA[%s]]></Title>
            <Description><![CDATA[]]></Description>
            <MusicUrl><![CDATA[%s]]></MusicUrl>
            <HQMusicUrl><![CDATA[%s]]></HQMusicUrl>
            <FuncFlag><![CDATA[1]]></FuncFlag>
            </Music>
            </xml>";
        //$recognition=$postObj->Recognition;  語音識別功能
        //$keywordc= urlencode($recognition);  語音識別功能
        $keyword = trim($postObj->Content);
        $musicapi =  "http://box.zhangmen.baidu.com/x?op=12&count=1&title={$keyword}\$\$";
        $simstr=file_get_contents($musicapi);
        $musicobj=simplexml_load_string($simstr);
        $i=0;
        foreach($musicobj->url as $itemobj)
        {
            $encode = $itemobj->encode;
            $decode = $itemobj->decode;
            $removedecode = end(explode('&', $decode));
            if($removedecode<>"")
            {
                $removedecode="&".$removedecode;
            }
            $decode = str_replace($removedecode,"", $decode);
            $musicurl= str_replace(end(explode('/', $encode))   ,$decode,$encode);
            break;
        }
    
        $resultStr = sprintf($ret, $postObj->FromUserName, $postObj->ToUserName,time(), $keyword,$musicurl,$musicurl);
        return $resultStr;
    
    }