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 ?>