微信客服消息实现被动回复

link 上一篇的那个获取微信消息文章，你可以在接收消息的方法里加入，这里我是为了实现当用户发送指定的文本消息后自动回复。

function sendMsg($access_token,$fromusername){
  	  $contentStr="这是发送内容<a href='http://www.baidu.com'>go</a>";
    	$contentStr=urlencode($contentStr);
    	//$content = $content."<a href='http://www.baidu.com'>go</a>";
    	$a=array("content"=>$contentStr);
    	$this ->creatTextFile($fromusername,'res3444');
    	$b=array("touser"=>"{$fromusername}","msgtype"=>"text","text"=>$a);
    	$this ->creatTextFile(count($b),'res433');
    	$post=json_encode($b);
    	$post=urldecode($post);
  	  $sendUrl = 'https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token='.$access_token;
  	  $result = $this -> http_post_json($sendUrl,$post);
  	  $this ->creatTextFile($result,'res433');
  	}
	private function receiveText($object,$access_token) {
		$funcFlag = 0;
		$contentStr = $object -> Content;
		//this ->show($contentStr);
		$fromusername = $object -> FromUserName;
		$this -> sendMsg($access_token,$fromusername);
		$resultStr = $this -> transmitText($object, $contentStr, $funcFlag);
		return $resultStr;
	}