微信公众号开发之语音消息识别php代码


            本文实例为大家分享了php微信语音消息识别代码，供大家参考，具体内容如下

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：











<?php

/**

 * wechat php test

 */



//define your token

define("TOKEN", "weixin");

$wechatObj = new wechatCallbackapiTest();

//$wechatObj->valid();//接口验证

$wechatObj->responseMsg();//调用回复消息方法

class wechatCallbackapiTest

{

 public function valid()

 {

  $echoStr = $_GET["echostr"];



  //valid signature , option

  if($this->checkSignature()){

   echo $echoStr;

   exit;

  }

 }



 public function responseMsg()

 {

  //get post data, May be due to the different environments

  $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];



   //extract post data

  if (!empty($postStr)){

    /* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection,

     the best way is to check the validity of xml by yourself */

    libxml_disable_entity_loader(true);

     $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);

    $fromUsername = $postObj->FromUserName;

    $toUsername = $postObj->ToUserName;

    $keyword = trim($postObj->Content);

    $time = time();

    $msgType = $postObj->MsgType;//消息类型

    $event = $postObj->Event;//时间类型，subscribe（订阅）、unsubscribe（取消订阅）

    

    $textTpl = "<xml>

       <ToUserName><![CDATA[%s]]></ToUserName>

       <FromUserName><![CDATA[%s]]></FromUserName>

       <CreateTime>%s</CreateTime>

       <MsgType><![CDATA[%s]]></MsgType>

       <Content><![CDATA[%s]]></Content>

       <FuncFlag>0</FuncFlag>

       </xml>"; 

       

    switch($msgType){

     case "event":

     if($event=="subscribe"){

      $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.";

     } 

     break;

     case "text"://文本消息

      switch($keyword){

       case "1":

       $contentStr = "店铺地址："."\n"."杭州市江干区."; 

       break;

       case "2":

       $contentStr = "商品种类:"."\n"."杯子、碗、棉签、水桶、垃圾桶、洗碗巾(刷)、拖把、扫把、"

           ."衣架、粘钩、牙签、垃圾袋、保鲜袋(膜)、剪刀、水果刀、饭盒等.";

       break;

       default:

       $contentStr = "对不起,你的内容我会稍后回复";

      }

     break;

     case "voice"://语音消息

     //语音识别

     $recognition = $postObj->Recognition;

     $format = $postObj->Format;

     $contentStr = "你发送的是语音消息"."\n"."语音格式为:"."\n".$format."\n"."语音内容为:"."\n".$recognition;

     break;

    }

    $msgType = "text";

    $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);

    echo $resultStr;

  }else {

   echo "";

   exit;

  }

 }

  

 private function checkSignature()

 {

  // you must define TOKEN by yourself

  if (!defined("TOKEN")) {

   throw new Exception('TOKEN is not defined!');

  }

  

  $signature = $_GET["signature"];

  $timestamp = $_GET["timestamp"];

  $nonce = $_GET["nonce"];

    

  $token = TOKEN;

  $tmpArr = array($token, $timestamp, $nonce);

  // use SORT_STRING rule

  sort($tmpArr, SORT_STRING);

  $tmpStr = implode( $tmpArr );

  $tmpStr = sha1( $tmpStr );

  

  if( $tmpStr == $signature ){

   return true;

  }else{

   return false;

  }

 }

}





?>







以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持中文源码网。