微信公众平台开发接口PHP SDK完整版

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    文章转载自方倍工作室-《微信公众平台开发接口PHP SDK完整版》

    官方提供的SDK只有一个文本消息功能,我们将所有消息的消息类型及事件响应都整理了进来,并且加入日志记录,代码如下:

    更新日志:
    2013-01-01 版本1.0,包含Token验证及基本消息接口的收发
    2014-03-15 增加图片、视频、语音的内容回复
    2014-04-09 增加菜单链接事件
    2014-04-10 修改文本回复的判定方法
    2014-05-20 增加高级群发消息通知事件
    2014-05-26 增加多客服消息及多客服的判定方法
    2014-05-27 修改自动回复判定方式
    2014-06-20 修复多图文回复的Bug
    2014-07-10 增加第三方接口处理样式
    2014-08-02 增加Emoji表格的回复处理
    2014-10-01 增加自定义菜单扫一扫、发图片、发地理位置等接口的处理
    2014-10-25 增加消息体签名及加解密的支持
    2014-11-07 增加该公众号暂时无法提供服务请稍后再试的兼容
    2014-12-20 移除高级群发消息通知事件,必要性不大
    2015-02-23 移除消息体签名及加解密的支持,必要性不大
    2015-04-07 优化客服模式和自动回复模式的判定
    2015-05-16 优化日志记录,兼容SAE和自有主机


    <?php
    /*
        方倍工作室 http://www.fangbei.org/
        CopyRight 2015 All Rights Reserved
    */
    
    define("TOKEN", "weixin");
    
    $wechatObj = new wechatCallbackapiTest();
    if (!isset($_GET['echostr'])) {
        $wechatObj->responseMsg();
    }
    else {
        $wechatObj->valid();
    }
    
    class wechatCallbackapiTest
    {
        //验证签名
        public function valid()
        {
            $echoStr = $_GET["echostr"];
            $signature = $_GET["signature"];
            $timestamp = $_GET["timestamp"];
            $nonce = $_GET["nonce"];
            $token = TOKEN;
            $tmpArr = array($token, $timestamp, $nonce);
            sort($tmpArr, SORT_STRING);
            $tmpStr = implode($tmpArr);
            $tmpStr = sha1($tmpStr);
            if ($tmpStr == $signature) {
                echo $echoStr;
                exit;
            }
        }
    
        //响应消息
        public function responseMsg()
        {
            $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
            if (!empty($postStr)) {
                $this->logger("R \r\n".$postStr);
                $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                $RX_TYPE = trim($postObj->MsgType);
    
                if (($postObj->MsgType == "event") && ($postObj->Event == "subscribe" || $postObj->Event == "unsubscribe")) {
                    //过滤关注和取消关注事件
                }
                else {
                    
                }
                
                //消息类型分离
                switch ($RX_TYPE)
                {
                    case "event":
                        $result = $this->receiveEvent($postObj);
                        break;
                    case "text":
                       if (strstr($postObj->Content, "第三方")) {
                            $result = $this->relayPart3("http://www.fangbei.org/test.php".'?'.$_SERVER['QUERY_STRING'], $postStr);
                        }
                        else {
                            $result = $this->receiveText($postObj);
                        }
                        break;
                    case "image":
                        $result = $this->receiveImage($postObj);
                        break;
                    case "location":
                        $result = $this->receiveLocation($postObj);
                        break;
                    case "voice":
                        $result = $this->receiveVoice($postObj);
                        break;
                    case "video":
                        $result = $this->receiveVideo($postObj);
                        break;
                    case "link":
                        $result = $this->receiveLink($postObj);
                        break;
                    default:
                        $result = "unknown msg type: ".$RX_TYPE;
                        break;
                }
                $this->logger("T \r\n".$result);
                echo $result;
            }
            else {
                echo "";
                exit;
            }
        }
    
        //接收事件消息
        private function receiveEvent($object)
        {
            $content = "";
            switch ($object->Event)
            {
                case "subscribe":
                    $content = "欢迎关注方倍工作室 ";
                    $content .= (!empty($object->EventKey))?("\n来自二维码场景 ".str_replace("qrscene_","",$object->EventKey)):"";
                    break;
                case "unsubscribe":
                    $content = "取消关注";
                    break;
                case "CLICK":
                    switch ($object->EventKey)
                    {
                        case "COMPANY":
                            $content = array();
                            $content[] = array("Title"=>"方倍工作室", "Description"=>"", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
                            break;
                        default:
                            $content = "点击菜单:".$object->EventKey;
                            break;
                    }
                    break;
                case "VIEW":
                    $content = "跳转链接 ".$object->EventKey;
                    break;
                case "SCAN":
                    $content = "扫描场景 ".$object->EventKey;
                    break;
                case "LOCATION":
                    $content = "上传位置:纬度 ".$object->Latitude.";经度 ".$object->Longitude;
                    break;
                case "scancode_waitmsg":
                    if ($object->ScanCodeInfo->ScanType == "qrcode") {
                        $content = "扫码带提示:类型 二维码 结果:".$object->ScanCodeInfo->ScanResult;
                    }
                    else if ($object->ScanCodeInfo->ScanType == "barcode") {
                        $codeinfo = explode(",",strval($object->ScanCodeInfo->ScanResult));
                        $codeValue = $codeinfo[1];
                        $content = "扫码带提示:类型 条形码 结果:".$codeValue;
                    }
                    else {
                        $content = "扫码带提示:类型 ".$object->ScanCodeInfo->ScanType." 结果:".$object->ScanCodeInfo->ScanResult;
                    }
                    break;
                case "scancode_push":
                    $content = "扫码推事件";
                    break;
                case "pic_sysphoto":
                    $content = "系统拍照";
                    break;
                case "pic_weixin":
                    $content = "相册发图:数量 ".$object->SendPicsInfo->Count;
                    break;
                case "pic_photo_or_album":
                    $content = "拍照或者相册:数量 ".$object->SendPicsInfo->Count;
                    break;
                case "location_select":
                    $content = "发送位置:标签 ".$object->SendLocationInfo->Label;
                    break;
                default:
                    $content = "receive a new event: ".$object->Event;
                    break;
            }
    
            if (is_array($content)) {
                if (isset($content[0]['PicUrl'])) {
                    $result = $this->transmitNews($object, $content);
                }
                else if (isset($content['MusicUrl'])) {
                    $result = $this->transmitMusic($object, $content);
                }
            }
            else {
                $result = $this->transmitText($object, $content);
            }
            return $result;
        }
    
        //接收文本消息
        private function receiveText($object)
        {
            $keyword = trim($object->Content);
            //多客服人工回复模式
            if (strstr($keyword, "请问在吗") || strstr($keyword, "在线客服")) {
                $result = $this->transmitService($object);
                return $result;
            }
    
            //自动回复模式
            if (strstr($keyword, "文本")) {
                $content = "这是个文本消息";
            }
            else if (strstr($keyword, "表情")) {
                $content = "中国:".$this->bytes_to_emoji(0x1F1E8).$this->bytes_to_emoji(0x1F1F3)."\n仙人掌:".$this->bytes_to_emoji(0x1F335);
            }
            else if (strstr($keyword, "单图文")) {
                $content = array();
                $content[] = array("Title"=>"单图文标题",  "Description"=>"单图文内容", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
            }
            else if (strstr($keyword, "图文") || strstr($keyword, "多图文")) {
                $content = array();
                $content[] = array("Title"=>"多图文1标题", "Description"=>"", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
                $content[] = array("Title"=>"多图文2标题", "Description"=>"", "PicUrl"=>"http://d.hiphotos.bdimg.com/wisegame/pic/item/f3529822720e0cf3ac9f1ada0846f21fbe09aaa3.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
                $content[] = array("Title"=>"多图文3标题", "Description"=>"", "PicUrl"=>"http://g.hiphotos.bdimg.com/wisegame/pic/item/18cb0a46f21fbe090d338acc6a600c338644adfd.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
            }
            else if (strstr($keyword, "音乐")) {
                $content = array();
                $content = array("Title"=>"最炫民族风", "Description"=>"歌手:凤凰传奇", "MusicUrl"=>"http://121.199.4.61/music/zxmzf.mp3", "HQMusicUrl"=>"http://121.199.4.61/music/zxmzf.mp3"); 
            }
            else {
                $content = date("Y-m-d H:i:s",time())."\nOpenID:".$object->FromUserName."\n技术支持 方倍工作室";
            }
    
            if (is_array($content)) {
                if (isset($content[0])) {
                    $result = $this->transmitNews($object, $content);
                }
                else if (isset($content['MusicUrl'])) {
                    $result = $this->transmitMusic($object, $content);
                }
            }
            else {
                $result = $this->transmitText($object, $content);
            }
            return $result;
        }
    
        //接收图片消息
        private function receiveImage($object)
        {
            $content = array("MediaId"=>$object->MediaId);
            $result = $this->transmitImage($object, $content);
            return $result;
        }
    
        //接收位置消息
        private function receiveLocation($object)
        {
            $content = "你发送的是位置,经度为:".$object->Location_Y.";纬度为:".$object->Location_X.";缩放级别为:".$object->Scale.";位置为:".$object->Label;
            $result = $this->transmitText($object, $content);
            return $result;
        }
    
        //接收语音消息
        private function receiveVoice($object)
        {
            if (isset($object->Recognition) && !empty($object->Recognition)) {
                $content = "你刚才说的是:".$object->Recognition;
                $result = $this->transmitText($object, $content);
            }
            else {
                $content = array("MediaId"=>$object->MediaId);
                $result = $this->transmitVoice($object, $content);
            }
            return $result;
        }
    
        //接收视频消息
        private function receiveVideo($object)
        {
            $content = array("MediaId"=>$object->MediaId, "ThumbMediaId"=>$object->ThumbMediaId, "Title"=>"", "Description"=>"");
            $result = $this->transmitVideo($object, $content);
            return $result;
        }
    
        //接收链接消息
        private function receiveLink($object)
        {
            $content = "你发送的是链接,标题为:".$object->Title.";内容为:".$object->Description.";链接地址为:".$object->Url;
            $result = $this->transmitText($object, $content);
            return $result;
        }
    
        //回复文本消息
        private function transmitText($object, $content)
        {
            if (!isset($content) || empty($content)) {
                return "";
            }
    
            $xmlTpl = "<xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[text]]></MsgType>
                <Content><![CDATA[%s]]></Content>
            </xml>";
            $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), $content);
    
            return $result;
        }
    
        //回复图文消息
        private function transmitNews($object, $newsArray)
        {
            if (!is_array($newsArray)) {
                return "";
            }
            $itemTpl = "<item>
                <Title><![CDATA[%s]]></Title>
                <Description><![CDATA[%s]]></Description>
                <PicUrl><![CDATA[%s]]></PicUrl>
                <Url><![CDATA[%s]]></Url>
            </item>";
            $item_str = "";
            foreach ($newsArray as $item) {
                $item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);
            }
            $xmlTpl = "<xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[news]]></MsgType>
                <ArticleCount>%s</ArticleCount>
                <Articles>$item_str</Articles>
            </xml>";
    
            $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
            return $result;
        }
    
        //回复音乐消息
        private function transmitMusic($object, $musicArray)
        {
            if (!is_array($musicArray)) {
                return "";
            }
            $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']);
    
            $xmlTpl = "<xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[music]]></MsgType>
                $item_str
            </xml>";
    
            $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
            return $result;
        }
    
        //回复图片消息
        private function transmitImage($object, $imageArray)
        {
            $itemTpl = "<Image>
                <MediaId><![CDATA[%s]]></MediaId>
            </Image>";
    
            $item_str = sprintf($itemTpl, $imageArray['MediaId']);
    
            $xmlTpl = "<xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[image]]></MsgType>
                $item_str
           </xml>";
    
            $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
            return $result;
        }
    
        //回复语音消息
        private function transmitVoice($object, $voiceArray)
        {
            $itemTpl = "<Voice>
                <MediaId><![CDATA[%s]]></MediaId>
            </Voice>";
    
            $item_str = sprintf($itemTpl, $voiceArray['MediaId']);
            $xmlTpl = "<xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[voice]]></MsgType>
                $item_str
            </xml>";
    
            $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
            return $result;
        }
    
        //回复视频消息
        private function transmitVideo($object, $videoArray)
        {
            $itemTpl = "<Video>
                <MediaId><![CDATA[%s]]></MediaId>
                <ThumbMediaId><![CDATA[%s]]></ThumbMediaId>
                <Title><![CDATA[%s]]></Title>
                <Description><![CDATA[%s]]></Description>
            </Video>";
    
            $item_str = sprintf($itemTpl, $videoArray['MediaId'], $videoArray['ThumbMediaId'], $videoArray['Title'], $videoArray['Description']);
    
            $xmlTpl = "<xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[video]]></MsgType>
                $item_str
            </xml>";
    
            $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
            return $result;
        }
    
        //回复多客服消息
        private function transmitService($object)
        {
            $xmlTpl = "<xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[transfer_customer_service]]></MsgType>
            </xml>";
            $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
            return $result;
        }
    
        //回复第三方接口消息
        private function relayPart3($url, $rawData)
        {
            $headers = array("Content-Type: text/xml; charset=utf-8");
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $rawData);
            $output = curl_exec($ch);
            curl_close($ch);
            return $output;
        }
    
        //字节转Emoji表情
        function bytes_to_emoji($cp)
        {
            if ($cp > 0x10000) {      # 4 bytes
                return chr(0xF0 | (($cp & 0x1C0000) >> 18)).chr(0x80 | (($cp & 0x3F000) >> 12)).chr(0x80 | (($cp & 0xFC0) >> 6)).chr(0x80 | ($cp & 0x3F));
            }
            else if ($cp > 0x800) {   # 3 bytes
                return chr(0xE0 | (($cp & 0xF000) >> 12)).chr(0x80 | (($cp & 0xFC0) >> 6)).chr(0x80 | ($cp & 0x3F));
            }
            else if ($cp > 0x80) {    # 2 bytes
                return chr(0xC0 | (($cp & 0x7C0) >> 6)).chr(0x80 | ($cp & 0x3F));
            }
            else {                    # 1 byte
                return chr($cp);
            }
        }
    
        //日志记录
        private function logger($log_content)
        {
            if (isset($_SERVER['HTTP_APPNAME'])) {   //SAE
                sae_set_display_errors(false);
                sae_debug($log_content);
                sae_set_display_errors(true);
            }
            else if ($_SERVER['REMOTE_ADDR'] != "127.0.0.1") { //LOCAL
                $max_size = 1000000;
                $log_filename = "log.xml";
                if (file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)) {
                    unlink($log_filename);
                }
                file_put_contents($log_filename, date('Y-m-d H:i:s')." ".$log_content."\r\n", FILE_APPEND);
            }
        }
    }
    ?>


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