微信调试有关问题

微信调试问题
微信回复关键字  服务器接收    这里的逻辑怎么输出？？ 比方说我收到了 xml数据 然后输出 但有时候我这里需要写个数组 然后输出 怎么做

如果写入文件和数据库表只能输出xml和字符串 不能输出数组  
------解决思路----------------------

define("TOKEN", "bjcy");#这里定义你留下的tooken
#这里是你定义好的消息回复
$default="";

$address="http://www.bjcy07.com";
#这里是规则,判断用户发送过来的信息所包含的关键字,你可以定义更多,这里只是一个教程
$rule=Array("竞猜","竞猜送话费","送话费","竞猜白银");
#初始化
$Msg = new Msg();
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim($postObj->Content);
$key=$Msg->match($rule,$keyword);
#循环开始,判断用户所发送过来的消息,参数作用在下面的方法介绍里面
	switch ( $key )
	{

		
		case "竞猜":
		$Msg->picMsg($fromUsername,$toUsername,"合创盈丰上线有礼：免费竞猜四位数，就中话费300元！","http://www.hcyf07.com/weixin/sdd2.jpg",'竞猜',"http://www.hcyf07.com");
		exit();
		
	
		
		case "竞猜送话费":
		$Msg->picMsg($fromUsername,$toUsername,"合创盈丰上线有礼：免费竞猜四位数，就中话费300元！","http://www.hcyf07.com/weixin/sdd2.jpg",'竞猜送话费',"http://www.hcyf07.com");
		exit();
		
		
		case "送话费":
		$Msg->picMsg($fromUsername,$toUsername,"合创盈丰上线有礼：免费竞猜四位数，就中话费300元！","http://www.hcyf07.com/weixin/sdd2.jpg",'送话费',"http://www.hcyf07.com");
		exit();
		
		case "竞猜白银":
		$Msg->picMsg($fromUsername,$toUsername,"合创盈丰上线有礼：免费竞猜四位数，就中话费300元！","http://www.hcyf07.com/weixin/sdd2.jpg",'竞猜白银',"http://www.hcyf07.com");
		exit();
		
		
		default:
		$Msg->txtMsg($fromUsername,$toUsername,$default);
	}


if(!empty( $keyword ))  
                {  
          
                $msgType = "text";  
        //入库试一下  
   
        //在这里可以判断接收到的keyword  
                      
                echo $resultStr;  
            }else{  
            if($event=="subscribe"){//首次关注  
                     $msgType = "text";  
                     $url = "http://www.bjcy07.com/";  
                     $contentStr = "您好，感谢关北京合创盈丰商品经营有限公司，北京合创盈丰商品经营有限公司是北京大宗商品交易所会员单位（会员席位号为007号），以现货白银等贵金属的销售、回购为主要经营项目，实行24小时买卖报价交易，同时提供贵金属投资咨询服务。".$url;  
                     $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);  
                    echo  $resultStr;  
                      
                }  
                echo "Input something...";  
            }  

/* class of msg */
class Msg
{ 
 public function valid()
    {
        $echoStr = $_GET["echostr"];
        //valid signature , option
        if($this->checkSignature()){
         echo $echoStr;
         exit;
        }
    }
	#依次为 来源用户,发送到用户,时间,标题,图片地址,简介,点击微信消息时候的链接,当然你可以修改这个顺序
    function picMsg($fromUsername,$toUsername,$title,$PicUrl,$Discription,$Url)
    {
		//get post data, May be due to the different environments
		$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
			$time = time();
			$textTpl = " 
			 
			 
			%s 
			 
			  
			1 
			 
			 
			 
			 
			 
			 
			1 
			 ";    
				$resultStr = sprintf($textTpl,$fromUsername,$toUsername,$time,$title,$Discription,$PicUrl,$Url);
				echo $resultStr;
	}
		
	
	function txtMsg($fromUsername,$toUsername,$contentStr) 
	{ 
		$postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; 
			$time = time(); 
			$textTpl = " 
			 
			 
			%s 
			 
			 
			0 
			"; 
			$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $contentStr); 
			echo $resultStr; 
			
	}
  
	private function checkSignature()
	{
		$signature = $_GET["signature"];
		$timestamp = $_GET["timestamp"];
		$nonce = $_GET["nonce"]; 
		$token = TOKEN;
		$tmpArr = array($token, $timestamp, $nonce);
		sort($tmpArr);
		$tmpStr = implode( $tmpArr );
		$tmpStr = sha1( $tmpStr );

		if( $tmpStr == $signature ){
		return true;
		}else{
			return false;
		}
	}
	#匹配用户关键字
	function match($rule,$keyword){ 
		$num=count($rule)+1; 
		for($i=0;$i<$num;$i++){ 
			if( preg_match( "/$rule[$i]/",$keyword ) ){
				return $rule[$i];
				exit();
			}
		} 
	} 
	
} ?>