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
  1 <?php
  2 /*
  3     方倍工作室 http://www.fangbei.org/
  4     CopyRight 2015 All Rights Reserved
  5 */
  6 
  7 define("TOKEN", "weixin");
  8 
  9 $wechatObj = new wechatCallbackapiTest();
 10 if (!isset($_GET['echostr'])) {
 11     $wechatObj->responseMsg();
 12 }else{
 13     $wechatObj->valid();
 14 }
 15 
 16 class wechatCallbackapiTest
 17 {
 18     //验证签名
 19     public function valid()
 20     {
 21         $echoStr = $_GET["echostr"];
 22         $signature = $_GET["signature"];
 23         $timestamp = $_GET["timestamp"];
 24         $nonce = $_GET["nonce"];
 25         $token = TOKEN;
 26         $tmpArr = array($token, $timestamp, $nonce);
 27         sort($tmpArr, SORT_STRING);
 28         $tmpStr = implode($tmpArr);
 29         $tmpStr = sha1($tmpStr);
 30         if($tmpStr == $signature){
 31             echo $echoStr;
 32             exit;
 33         }
 34     }
 35 
 36     //响应消息
 37     public function responseMsg()
 38     {
 39         $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
 40         if (!empty($postStr)){
 41             $this->logger("R 
".$postStr);
 42             $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
 43             $RX_TYPE = trim($postObj->MsgType);
 44 
 45             if (($postObj->MsgType == "event") && ($postObj->Event == "subscribe" || $postObj->Event == "unsubscribe")){
 46                 //过滤关注和取消关注事件
 47             }else{
 48                 
 49             }
 50             
 51             //消息类型分离
 52             switch ($RX_TYPE)
 53             {
 54                 case "event":
 55                     $result = $this->receiveEvent($postObj);
 56                     break;
 57                 case "text":
 58                    if (strstr($postObj->Content, "第三方")){
 59                         $result = $this->relayPart3("http://www.fangbei.org/test.php".'?'.$_SERVER['QUERY_STRING'], $postStr);
 60                     }else{
 61                         $result = $this->receiveText($postObj);
 62                     }
 63                     break;
 64                 case "image":
 65                     $result = $this->receiveImage($postObj);
 66                     break;
 67                 case "location":
 68                     $result = $this->receiveLocation($postObj);
 69                     break;
 70                 case "voice":
 71                     $result = $this->receiveVoice($postObj);
 72                     break;
 73                 case "video":
 74                     $result = $this->receiveVideo($postObj);
 75                     break;
 76                 case "link":
 77                     $result = $this->receiveLink($postObj);
 78                     break;
 79                 default:
 80                     $result = "unknown msg type: ".$RX_TYPE;
 81                     break;
 82             }
 83             $this->logger("T 
".$result);
 84             echo $result;
 85         }else {
 86             echo "";
 87             exit;
 88         }
 89     }
 90 
 91     //接收事件消息
 92     private function receiveEvent($object)
 93     {
 94         $content = "";
 95         switch ($object->Event)
 96         {
 97             case "subscribe":
 98                 $content = "欢迎关注方倍工作室 ";
 99                 $content .= (!empty($object->EventKey))?("
来自二维码场景 ".str_replace("qrscene_","",$object->EventKey)):"";
100                 break;
101             case "unsubscribe":
102                 $content = "取消关注";
103                 break;
104             case "CLICK":
105                 switch ($object->EventKey)
106                 {
107                     case "COMPANY":
108                         $content = array();
109                         $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");
110                         break;
111                     default:
112                         $content = "点击菜单：".$object->EventKey;
113                         break;
114                 }
115                 break;
116             case "VIEW":
117                 $content = "跳转链接 ".$object->EventKey;
118                 break;
119             case "SCAN":
120                 $content = "扫描场景 ".$object->EventKey;
121                 break;
122             case "LOCATION":
123                 $content = "上传位置：纬度 ".$object->Latitude.";经度 ".$object->Longitude;
124                 break;
125             case "scancode_waitmsg":
126                 if ($object->ScanCodeInfo->ScanType == "qrcode"){
127                     $content = "扫码带提示：类型 二维码 结果：".$object->ScanCodeInfo->ScanResult;
128                 }else if ($object->ScanCodeInfo->ScanType == "barcode"){
129                     $codeinfo = explode(",",strval($object->ScanCodeInfo->ScanResult));
130                     $codeValue = $codeinfo[1];
131                     $content = "扫码带提示：类型 条形码 结果：".$codeValue;
132                 }else{
133                     $content = "扫码带提示：类型 ".$object->ScanCodeInfo->ScanType." 结果：".$object->ScanCodeInfo->ScanResult;
134                 }
135                 break;
136             case "scancode_push":
137                 $content = "扫码推事件";
138                 break;
139             case "pic_sysphoto":
140                 $content = "系统拍照";
141                 break;
142             case "pic_weixin":
143                 $content = "相册发图：数量 ".$object->SendPicsInfo->Count;
144                 break;
145             case "pic_photo_or_album":
146                 $content = "拍照或者相册：数量 ".$object->SendPicsInfo->Count;
147                 break;
148             case "location_select":
149                 $content = "发送位置：标签 ".$object->SendLocationInfo->Label;
150                 break;
151             default:
152                 $content = "receive a new event: ".$object->Event;
153                 break;
154         }
155 
156         if(is_array($content)){
157             if (isset($content[0]['PicUrl'])){
158                 $result = $this->transmitNews($object, $content);
159             }else if (isset($content['MusicUrl'])){
160                 $result = $this->transmitMusic($object, $content);
161             }
162         }else{
163             $result = $this->transmitText($object, $content);
164         }
165         return $result;
166     }
167 
168     //接收文本消息
169     private function receiveText($object)
170     {
171         $keyword = trim($object->Content);
172         //多客服人工回复模式
173         if (strstr($keyword, "请问在吗") || strstr($keyword, "在线客服")){
174             $result = $this->transmitService($object);
175             return $result;
176         }
177 
178         //自动回复模式
179         if (strstr($keyword, "文本")){
180             $content = "这是个文本消息";
181         }else if (strstr($keyword, "表情")){
182             $content = "中国：".$this->bytes_to_emoji(0x1F1E8).$this->bytes_to_emoji(0x1F1F3)."
仙人掌：".$this->bytes_to_emoji(0x1F335);
183         }else if (strstr($keyword, "单图文")){
184             $content = array();
185             $content[] = array("Title"=>"单图文标题",  "Description"=>"单图文内容", "PicUrl"=>"http://discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
186         }else if (strstr($keyword, "图文") || strstr($keyword, "多图文")){
187             $content = array();
188             $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");
189             $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");
190             $content[] = array("Title"=>"多图文3标题", "Description"=>"", "PicUrl"=>"http://g.hiphotos.bdimg.com/wisegame/pic/item/18cb0a46f21fbe090d338acc6a600c338644adfd.jpg", "Url" =>"http://m.cnblogs.com/?u=txw1958");
191         }else if (strstr($keyword, "音乐")){
192             $content = array();
193             $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"); 
194         }else{
195             $content = date("Y-m-d H:i:s",time())."
OpenID：".$object->FromUserName."
技术支持 方倍工作室";
196         }
197 
198         if(is_array($content)){
199             if (isset($content[0])){
200                 $result = $this->transmitNews($object, $content);
201             }else if (isset($content['MusicUrl'])){
202                 $result = $this->transmitMusic($object, $content);
203             }
204         }else{
205             $result = $this->transmitText($object, $content);
206         }
207         return $result;
208     }
209 
210     //接收图片消息
211     private function receiveImage($object)
212     {
213         $content = array("MediaId"=>$object->MediaId);
214         $result = $this->transmitImage($object, $content);
215         return $result;
216     }
217 
218     //接收位置消息
219     private function receiveLocation($object)
220     {
221         $content = "你发送的是位置，经度为：".$object->Location_Y."；纬度为：".$object->Location_X."；缩放级别为：".$object->Scale."；位置为：".$object->Label;
222         $result = $this->transmitText($object, $content);
223         return $result;
224     }
225 
226     //接收语音消息
227     private function receiveVoice($object)
228     {
229         if (isset($object->Recognition) && !empty($object->Recognition)){
230             $content = "你刚才说的是：".$object->Recognition;
231             $result = $this->transmitText($object, $content);
232         }else{
233             $content = array("MediaId"=>$object->MediaId);
234             $result = $this->transmitVoice($object, $content);
235         }
236         return $result;
237     }
238 
239     //接收视频消息
240     private function receiveVideo($object)
241     {
242         $content = array("MediaId"=>$object->MediaId, "ThumbMediaId"=>$object->ThumbMediaId, "Title"=>"", "Description"=>"");
243         $result = $this->transmitVideo($object, $content);
244         return $result;
245     }
246 
247     //接收链接消息
248     private function receiveLink($object)
249     {
250         $content = "你发送的是链接，标题为：".$object->Title."；内容为：".$object->Description."；链接地址为：".$object->Url;
251         $result = $this->transmitText($object, $content);
252         return $result;
253     }
254 
255     //回复文本消息
256     private function transmitText($object, $content)
257     {
258         if (!isset($content) || empty($content)){
259             return "";
260         }
261 
262         $xmlTpl = "<xml>
263     <ToUserName><![CDATA[%s]]></ToUserName>
264     <FromUserName><![CDATA[%s]]></FromUserName>
265     <CreateTime>%s</CreateTime>
266     <MsgType><![CDATA[text]]></MsgType>
267     <Content><![CDATA[%s]]></Content>
268 </xml>";
269         $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), $content);
270 
271         return $result;
272     }
273 
274     //回复图文消息
275     private function transmitNews($object, $newsArray)
276     {
277         if(!is_array($newsArray)){
278             return "";
279         }
280         $itemTpl = "        <item>
281             <Title><![CDATA[%s]]></Title>
282             <Description><![CDATA[%s]]></Description>
283             <PicUrl><![CDATA[%s]]></PicUrl>
284             <Url><![CDATA[%s]]></Url>
285         </item>
286 ";
287         $item_str = "";
288         foreach ($newsArray as $item){
289             $item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);
290         }
291         $xmlTpl = "<xml>
292     <ToUserName><![CDATA[%s]]></ToUserName>
293     <FromUserName><![CDATA[%s]]></FromUserName>
294     <CreateTime>%s</CreateTime>
295     <MsgType><![CDATA[news]]></MsgType>
296     <ArticleCount>%s</ArticleCount>
297     <Articles>
298 $item_str    </Articles>
299 </xml>";
300 
301         $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
302         return $result;
303     }
304 
305     //回复音乐消息
306     private function transmitMusic($object, $musicArray)
307     {
308         if(!is_array($musicArray)){
309             return "";
310         }
311         $itemTpl = "<Music>
312         <Title><![CDATA[%s]]></Title>
313         <Description><![CDATA[%s]]></Description>
314         <MusicUrl><![CDATA[%s]]></MusicUrl>
315         <HQMusicUrl><![CDATA[%s]]></HQMusicUrl>
316     </Music>";
317 
318         $item_str = sprintf($itemTpl, $musicArray['Title'], $musicArray['Description'], $musicArray['MusicUrl'], $musicArray['HQMusicUrl']);
319 
320         $xmlTpl = "<xml>
321     <ToUserName><![CDATA[%s]]></ToUserName>
322     <FromUserName><![CDATA[%s]]></FromUserName>
323     <CreateTime>%s</CreateTime>
324     <MsgType><![CDATA[music]]></MsgType>
325     $item_str
326 </xml>";
327 
328         $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
329         return $result;
330     }
331 
332     //回复图片消息
333     private function transmitImage($object, $imageArray)
334     {
335         $itemTpl = "<Image>
336         <MediaId><![CDATA[%s]]></MediaId>
337     </Image>";
338 
339         $item_str = sprintf($itemTpl, $imageArray['MediaId']);
340 
341         $xmlTpl = "<xml>
342     <ToUserName><![CDATA[%s]]></ToUserName>
343     <FromUserName><![CDATA[%s]]></FromUserName>
344     <CreateTime>%s</CreateTime>
345     <MsgType><![CDATA[image]]></MsgType>
346     $item_str
347 </xml>";
348 
349         $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
350         return $result;
351     }
352 
353     //回复语音消息
354     private function transmitVoice($object, $voiceArray)
355     {
356         $itemTpl = "<Voice>
357         <MediaId><![CDATA[%s]]></MediaId>
358     </Voice>";
359 
360         $item_str = sprintf($itemTpl, $voiceArray['MediaId']);
361         $xmlTpl = "<xml>
362     <ToUserName><![CDATA[%s]]></ToUserName>
363     <FromUserName><![CDATA[%s]]></FromUserName>
364     <CreateTime>%s</CreateTime>
365     <MsgType><![CDATA[voice]]></MsgType>
366     $item_str
367 </xml>";
368 
369         $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
370         return $result;
371     }
372 
373     //回复视频消息
374     private function transmitVideo($object, $videoArray)
375     {
376         $itemTpl = "<Video>
377         <MediaId><![CDATA[%s]]></MediaId>
378         <ThumbMediaId><![CDATA[%s]]></ThumbMediaId>
379         <Title><![CDATA[%s]]></Title>
380         <Description><![CDATA[%s]]></Description>
381     </Video>";
382 
383         $item_str = sprintf($itemTpl, $videoArray['MediaId'], $videoArray['ThumbMediaId'], $videoArray['Title'], $videoArray['Description']);
384 
385         $xmlTpl = "<xml>
386     <ToUserName><![CDATA[%s]]></ToUserName>
387     <FromUserName><![CDATA[%s]]></FromUserName>
388     <CreateTime>%s</CreateTime>
389     <MsgType><![CDATA[video]]></MsgType>
390     $item_str
391 </xml>";
392 
393         $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
394         return $result;
395     }
396 
397     //回复多客服消息
398     private function transmitService($object)
399     {
400         $xmlTpl = "<xml>
401     <ToUserName><![CDATA[%s]]></ToUserName>
402     <FromUserName><![CDATA[%s]]></FromUserName>
403     <CreateTime>%s</CreateTime>
404     <MsgType><![CDATA[transfer_customer_service]]></MsgType>
405 </xml>";
406         $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
407         return $result;
408     }
409 
410     //回复第三方接口消息
411     private function relayPart3($url, $rawData)
412     {
413         $headers = array("Content-Type: text/xml; charset=utf-8");
414         $ch = curl_init();
415         curl_setopt($ch, CURLOPT_URL, $url);
416         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
417         curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
418         curl_setopt($ch, CURLOPT_POST, 1);
419         curl_setopt($ch, CURLOPT_POSTFIELDS, $rawData);
420         $output = curl_exec($ch);
421         curl_close($ch);
422         return $output;
423     }
424 
425     //字节转Emoji表情
426     function bytes_to_emoji($cp)
427     {
428         if ($cp > 0x10000){       # 4 bytes
429             return chr(0xF0 | (($cp & 0x1C0000) >> 18)).chr(0x80 | (($cp & 0x3F000) >> 12)).chr(0x80 | (($cp & 0xFC0) >> 6)).chr(0x80 | ($cp & 0x3F));
430         }else if ($cp > 0x800){   # 3 bytes
431             return chr(0xE0 | (($cp & 0xF000) >> 12)).chr(0x80 | (($cp & 0xFC0) >> 6)).chr(0x80 | ($cp & 0x3F));
432         }else if ($cp > 0x80){    # 2 bytes
433             return chr(0xC0 | (($cp & 0x7C0) >> 6)).chr(0x80 | ($cp & 0x3F));
434         }else{                    # 1 byte
435             return chr($cp);
436         }
437     }
438 
439     //日志记录
440     private function logger($log_content)
441     {
442         if(isset($_SERVER['HTTP_APPNAME'])){   //SAE
443             sae_set_display_errors(false);
444             sae_debug($log_content);
445             sae_set_display_errors(true);
446         }else if($_SERVER['REMOTE_ADDR'] != "127.0.0.1"){ //LOCAL
447             $max_size = 1000000;
448             $log_filename = "log.xml";
449             if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);}
450             file_put_contents($log_filename, date('Y-m-d H:i:s')." ".$log_content."
", FILE_APPEND);
451         }
452     }
453 }
454 ?>
本程序在新浪云、阿里云、腾讯云、百度云均测试通过。
不会使用，或者使用出错的朋友，请参考微信开发入门教程，地址：http://www.cnblogs.com/txw1958/p/wechat-tutorial.html
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原文地址：https://www.cnblogs.com/txw1958/p/weixin-php-sdk.html