微信公众号开发之语音消息识别

来源：互联网发布：穿越火线数据异常编辑：程序博客网时间：2024/06/05 17:06

1.开通语音识别（默认关闭）

2.语音识别

请注意，开通语音识别后，用户每次发送语音给公众号时，微信会在推送的语音消息XML数据包中，增加一个Recognition字段（注：由于客户端缓存，开发者开启或者关闭语音识别功能，对新关注者立刻生效，对已关注用户需要24小时生效。开发者可以重新关注此帐号进行测试）。开启语音识别后的语音XML数据包如下：

  1 <?php  2 /**  3   * wechat php test  4   */  5   6 //define your token  7 define("TOKEN", "weixin");  8 $wechatObj = new wechatCallbackapiTest();  9 //$wechatObj->valid();//接口验证 10 $wechatObj->responseMsg();//调用回复消息方法 11 class wechatCallbackapiTest 12 { 13     public function valid() 14     { 15         $echoStr = $_GET["echostr"]; 16  17         //valid signature , option 18         if($this->checkSignature()){ 19             echo $echoStr; 20             exit; 21         } 22     } 23  24     public function responseMsg() 25     { 26         //get post data, May be due to the different environments 27         $postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; 28  29           //extract post data 30         if (!empty($postStr)){ 31                 /* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection, 32                    the best way is to check the validity of xml by yourself */ 33                 libxml_disable_entity_loader(true); 34                   $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); 35                 $fromUsername = $postObj->FromUserName; 36                 $toUsername = $postObj->ToUserName; 37                 $keyword = trim($postObj->Content); 38                 $time = time(); 39                 $msgType = $postObj->MsgType;//消息类型 40                 $event = $postObj->Event;//时间类型，subscribe（订阅）、unsubscribe（取消订阅） 41                  42                 $textTpl = "<xml> 43                             <ToUserName><![CDATA[%s]]></ToUserName> 44                             <FromUserName><![CDATA[%s]]></FromUserName> 45                             <CreateTime>%s</CreateTime> 46                             <MsgType><![CDATA[%s]]></MsgType> 47                             <Content><![CDATA[%s]]></Content> 48                             <FuncFlag>0</FuncFlag> 49                             </xml>";  50                             51                 switch($msgType){ 52                     case "event": 53                     if($event=="subscribe"){ 54                         $contentStr = "Hi,欢迎关注海仙日用百货!"."\n"."回复数字'1',了解店铺地址."."\n"."回复数字'2',了解商品种类."; 55                     }  56                     break; 57                     case "text"://文本消息 58                         switch($keyword){ 59                             case "1": 60                             $contentStr = "店铺地址："."\n"."杭州市江干区.";     61                             break; 62                             case "2": 63                             $contentStr = "商品种类:"."\n"."杯子、碗、棉签、水桶、垃圾桶、洗碗巾(刷)、拖把、扫把、" 64                                          ."衣架、粘钩、牙签、垃圾袋、保鲜袋(膜)、剪刀、水果刀、饭盒等."; 65                             break; 66                             default: 67                             $contentStr = "对不起,你的内容我会稍后回复"; 68                         } 69                     break; 70                     case "voice"://语音消息 71                     //语音识别 72                     $recognition = $postObj->Recognition; 73                     $format = $postObj->Format; 74                     $contentStr = "你发送的是语音消息"."\n"."语音格式为:"."\n".$format."\n"."语音内容为:"."\n".$recognition; 75                     break; 76                 } 77                 $msgType = "text"; 78                 $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); 79                 echo $resultStr; 80         }else { 81             echo ""; 82             exit; 83         } 84     } 85          86     private function checkSignature() 87     { 88         // you must define TOKEN by yourself 89         if (!defined("TOKEN")) { 90             throw new Exception('TOKEN is not defined!'); 91         } 92          93         $signature = $_GET["signature"]; 94         $timestamp = $_GET["timestamp"]; 95         $nonce = $_GET["nonce"]; 96                  97         $token = TOKEN; 98         $tmpArr = array($token, $timestamp, $nonce); 99         // use SORT_STRING rule100         sort($tmpArr, SORT_STRING);101         $tmpStr = implode( $tmpArr );102         $tmpStr = sha1( $tmpStr );103         104         if( $tmpStr == $signature ){105             return true;106         }else{107             return false;108         }109     }110 }111 112 113 ?>

语音识别

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