PHP实例：如何使用微信公众平台开发模式实现多客服

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

PHP教程
   //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;
  } 

PHP教程
 //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;
  }

PHP教程
<?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" =>"使用办法：\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);
    }
  }
}
?>