微信公众平台开发入门--PHP，实现自动回复文本，图文，点击事件

一页代码实现微信基本回复和点击事件功能，部署上去sae或者bae，妥妥的基本免费的服务器

不懂代码都基本每个人都可以做自己的微信公众号了

<?phpdefine("TOKEN", "mzh");        //换成你的token$wechatObj = new wechatCallbackapiTest();if (isset($_GET['echostr'])) {     //验证微信    $wechatObj->valid();}else{                     //回复消息    $wechatObj->responseMsg();}class wechatCallbackapiTest{    public function valid()    {        $echoStr = $_GET["echostr"];        if($this->checkSignature()){            echo $echoStr;            exit;        }    }    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;        }    }    //回复消息    public function responseMsg(){    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];    if (!empty($postStr)){        $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);        $RX_TYPE = trim($postObj->MsgType);        switch ($RX_TYPE)        {            case "text":                $resultStr = $this->receiveText($postObj);                break;            case "image":                $resultStr = $this->receiveImage($postObj);                break;            case "location":                $resultStr = $this->receiveLocation($postObj);                break;            case "voice":                $resultStr = $this->receiveVoice($postObj);                break;            case "video":                $resultStr = $this->receiveVideo($postObj);                break;            case "link":                $resultStr = $this->receiveLink($postObj);                break;            case "event":                $resultStr = $this->receiveEvent($postObj);                break;            default:                $resultStr = "unknow msg type: ".$RX_TYPE;                break;        }        echo $resultStr;    }else {        echo "";        exit;    }}        //接收文本消息    private function receiveText($object)    {        $keyword = trim($object->Content);        $url = "http://api100.duapp.com/movie/?appkey=DIY_miaomiao&name=".$keyword;        $output = file_get_contents($url,$keyword);        $contentStr = json_decode($output, true);        if (is_array($contentStr)){            $resultStr = $this->transmitNews($object, $contentStr);        }else{            $resultStr = $this->transmitText($object, $contentStr);        }        return $resultStr;    }        //接收事件，关注等    private function receiveEvent($object)    {        $contentStr = "";        switch ($object->Event)        {            case "subscribe":                $contentStr = "你关注了我";    //关注后回复内容                break;            case "unsubscribe":                $contentStr = "";                break;            case "CLICK":                $contentStr =  $this->receiveClick($object);    //点击事件                break;            default:                $contentStr = "receive a new event: ".$object->Event;                break;        }                return $contentStr;    }        //接收图片    private function receiveImage($object)    {        $contentStr = "你发送的是图片，地址为：".$object->PicUrl;        $resultStr = $this->transmitText($object, $contentStr);        return $resultStr;    }            //接收语音    private function receiveVoice($object)    {        $contentStr = "你发送的是语音，媒体ID为：".$object->MediaId;        $resultStr = $this->transmitText($object, $contentStr);        return $resultStr;    }        //接收视频    private function receiveVideo($object)    {        $contentStr = "你发送的是视频，媒体ID为：".$object->MediaId;        $resultStr = $this->transmitText($object, $contentStr);        return $resultStr;    }        //位置消息    private function receiveLocation($object)    {        $contentStr = "你发送的是位置，纬度为：".$object->Location_X."；经度为：".$object->Location_Y."；缩放级别为：".$object->Scale."；位置为：".$object->Label;        $resultStr = $this->transmitText($object, $contentStr);        return $resultStr;    }        //链接消息    private function receiveLink($object)    {        $contentStr = "你发送的是链接，标题为：".$object->Title."；内容为：".$object->Description."；链接地址为：".$object->Url;        $resultStr = $this->transmitText($object, $contentStr);        return $resultStr;    }          
 //点击菜单消息    private function receiveClick($object)    {         switch ($object->EventKey)         {             case "1":             $contentStr = "猫咪酱个性DIY服装，我们专业定制个性【班服，情侣装，亲子装等，有长短T恤，卫衣，长短裤】 来图印制即可，给你温馨可爱的TA，有事可直接留言微信";             break;                          case "2":             $contentStr = "你点击了菜单: ".$object->EventKey;             break;                          case "3":             $contentStr = "是傻逼";             break;                          default:             $contentStr = "你点击了菜单: ".$object->EventKey;             break;         }                        //两种回复        if (is_array($contentStr)){            $resultStr = $this->transmitNews($object, $contentStr);        }else{            $resultStr = $this->transmitText($object, $contentStr);        }        return  $resultStr;    }                                                        //回复文本消息    private function transmitText($object, $content)    {        $textTpl = "<xml>        <ToUserName><![CDATA[%s]]></ToUserName>        <FromUserName><![CDATA[%s]]></FromUserName>        <CreateTime>%s</CreateTime>        <MsgType><![CDATA[text]]></MsgType>        <Content><![CDATA[%s]]></Content>        </xml>";        $resultStr = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);        return $resultStr;    }
                        //回复图文    private function transmitNews($object, $arr_item)    {        if(!is_array($arr_item))            return;
        $itemTpl = "    <item>        <Title><![CDATA[%s]]></Title>        <Description><![CDATA[%s]]></Description>        <PicUrl><![CDATA[%s]]></PicUrl>        <Url><![CDATA[%s]]></Url>     </item>";        $item_str = "";        foreach ($arr_item as $item)            $item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);
        $newsTpl = "<xml>        <ToUserName><![CDATA[%s]]></ToUserName>        <FromUserName><![CDATA[%s]]></FromUserName>        <CreateTime>%s</CreateTime>        <MsgType><![CDATA[news]]></MsgType>        <Content><![CDATA[]]></Content>        <ArticleCount>%s</ArticleCount>        <Articles>        $item_str</Articles>        </xml>";
        $resultStr = sprintf($newsTpl, $object->FromUserName, $object->ToUserName, time(), count($arr_item));        return $resultStr;    }            //音乐消息    private function transmitMusic($object, $musicArray, $flag = 0)    {        $itemTpl = "<Music>        <Title><![CDATA[%s]]></Title>        <Description><![CDATA[%s]]></Description>        <MusicUrl><![CDATA[%s]]></MusicUrl>        <HQMusicUrl><![CDATA[%s]]></HQMusicUrl>        </Music>";
        $item_str = sprintf($itemTpl, $musicArray['Title'], $musicArray['Description'], $musicArray['MusicUrl'], $musicArray['HQMusicUrl']);
        $textTpl = "<xml>        <ToUserName><![CDATA[%s]]></ToUserName>        <FromUserName><![CDATA[%s]]></FromUserName>        <CreateTime>%s</CreateTime>        <MsgType><![CDATA[music]]></MsgType>        $item_str        <FuncFlag>%d</FuncFlag>        </xml>";
        $resultStr = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $flag);        return $resultStr;    }            }?>