How to use WeChat public platform development model to implement multi-customer service and public platform_PHP tutorial

How to use the WeChat public platform development model to achieve multi-customer service and public platform

In fact, the multi-customer service function of WeChat public platform has been out for a long time, and when it came out, I was already thinking about it I have implemented my official account. I originally thought that everyone would already know it, but today someone still asked me how to use this multi-customer service function. I searched online and found no good tutorials. Today I will send you a relatively simple and easy tutorial. Get the tutorial!

In this WeChat public platform development tutorial, we will introduce how to use the development model to implement a multi-customer service system.

1. Reply to multiple customer service messages

In the new WeChat protocol, the development mode can also be connected to the customer service system. If the developer needs to allow users to use the customer service system, they need to return a message with MsgType of transfer_customer_service when receiving the message sent by the user. When the WeChat server receives this message, it will transfer the message sent by the user this time and within a certain period of time in the future. The sent message is forwarded to the customer service system.

An example of the returned message is as follows

<xml>
  <ToUserName><![CDATA[touser]]></ToUserName>
  <FromUserName><![CDATA[fromuser]]></FromUserName>
  <CreateTime>1399197672</CreateTime>
  <MsgType><![CDATA[transfer_customer_service]]></MsgType>
</xml> 

The message is implemented as follows (based on Fangbei Studio’s WeChat public platform PHP SDK)

   //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;
  } 

2. Trigger multiple customer service sessions

Generally, when users want to ask questions, they often ask questions such as "Hello" and "Are you there?"

We use these words as trigger keywords. When the content of the text message sent by the user contains these words, multiple customer service messages will be returned to the user (the user will not feel any content on WeChat, but the WeChat public account will The user’s messages this time and in the future will be forwarded to customer service).

The implementation code is as follows:

 //接收文本消息
  private function receiveText($object)
  {
    $keyword = trim($object->Content);
    if (strstr($keyword, "投诉") || strstr($keyword, "你好") || strstr($keyword, "在吗")){
      $result = $this->transmitService($object);
    }
    return $result;
  }

3. Complete code

<&#63;php
/*
  方倍工作室
  CopyRight 2014 All Rights Reserved
*/
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
if (!isset($_GET['echostr'])) {
  $wechatObj->responseMsg();
}else{
  $wechatObj->valid();
}
class wechatCallbackapiTest
{
  //验证消息
  public function valid()
  {
    $echoStr = $_GET["echostr"];
    if($this->checkSignature()){
      echo $echoStr;
      exit;
    }
  }
  //检查签名
  private function checkSignature()
  {
    $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){
      return true;
    }else{
      return false;
    }
  }
  //响应消息
  public function responseMsg()
  {
    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
    if (!empty($postStr)){
      $this->logger("R ".$postStr);
      $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
      $RX_TYPE = trim($postObj->MsgType);
      switch ($RX_TYPE)
      {
        case "event":
          $result = $this->receiveEvent($postObj);
          break;
        case "text":
          $result = $this->receiveText($postObj);
          break;
      }
      $this->logger("T ".$result);
      echo $result;
    }else {
      echo "";
      exit;
    }
  }
  //接收事件消息
  private function receiveEvent($object)
  {
    switch ($object->Event)
    {
      case "subscribe":
        $content[] = array("Title" =>"欢迎关注方倍工作室", "Description" =>"使用方法：\n1.发送快递单号,例如6367532560,可查询快递详情", "PicUrl" =>"http://www.3856.cc/weixin/weixin/logo.jpg", "Url" =>"");
        break;
      default:
        $content = "receive a new event: ".$object->Event;
        break;
    }
    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 $result;
  }
  //接收文本消息
  private function receiveText($object)
  {
    $keyword = trim($object->Content);
    if($keyword == "时间" || $keyword == "测试"){
      $content = date("Y-m-d H:i:s",time());
      $result = $this->transmitText($object, $content);
    }
    //触发多客服模式
    else if (strstr($keyword, "您好") || strstr($keyword, "你好") || strstr($keyword, "在吗") || strstr($keyword, "有人吗")){
      $result = $this->transmitService($object);
      return $result;
    }
    return $result;
  }
  private function transmitText($object, $content)
  {
    $textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
</xml>";
    $result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);
    return $result;
  }
  private function transmitNews($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']);
    }
    $newsTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<Content><![CDATA[]]></Content>
<ArticleCount>%s</ArticleCount>
<Articles>
$item_str</Articles>
</xml>";
    $result = sprintf($newsTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
    return $result;
  }
  private function transmitMusic($object, $musicArray)
  {
    $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']);
    $textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[music]]></MsgType>
$item_str
</xml>";
    $result = sprintf($textTpl, $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 $result;
  }
  private function logger($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 = 10000;
      $log_filename = "log.xml";
      if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);}
      file_put_contents($log_filename, date('H:i:s')." ".$log_content."\r\n", FILE_APPEND);
    }
  }
}
&#63;> 

This code has been tested and returns multiple customer service messages in the custom menu. It cannot allow users to enter the multi-customer service state. After using multiple customer service messages, all subsequent messages will be forwarded as customer service messages for a period of time. The original development All automatic responses in the mode will be disabled.

This article is not well written, so I would like to thank Haihan. If you have good opinions, please share them, so that everyone can learn and make progress together. At the same time, thank you all for your continued support of the Bangkejia website.

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