微信公众平台开发接口PHP SDK完整版

<?php
  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);
         }
     }
 }
?>