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小编给大家分享一下微信公众平台开发之多客服的示例分析，希望大家阅读完这篇文章之后都有所收获，下面让我们一起去探讨吧！
一、回复多客服消息
在新的微信协议中，开发模式也可以接入客服系统。 开发者如果需要让用户使用客服系统，需要在接收到用户发送的消息时，返回一个MsgType为transfer_customer_service的消息，微信服务器在收到这条消息时，会把用户这次发送的和以后一段时间内发送的消息转发客服系统。
返回的消息举例如下
1399197672
该消息的实现如下
//回复多客服消息
private function transmitService($object)
{
$xmlTpl = "
%s
";
$result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time());
return $result;
}二、触发多客服会话
一般情况下，用户想要咨询问题是，经常会问“你好”，“在吗”，这样的问题。
我们以这些词为触发关键词，当用户发送的文本消息内容中包含这些词的时候，就返回多客服消息给用户（用户在微信端感觉不到任何内容，但微信公众账号会将用户本次及以后一段时间的消息都转发到客服）。
实现代码如下：
//接收文本消息
private function receiveText($object)
{
$keyword = trim($object->Content);
if (strstr($keyword, "投诉") || strstr($keyword, "你好") || strstr($keyword, "在吗")){
$result = $this->transmitService($object);
}
return $result;
}三、完整代码
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" =>"/tupian/20230522/404.html
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 = "
%s
";
$result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);
return $result;
}
private function transmitNews($object, $newsArray)
{
if(!is_array($newsArray)){
return;
}
$itemTpl = " -
<![CDATA[%s]]>
";
$item_str = "";
foreach ($newsArray as $item){
$item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);
}
$newsTpl = "
%s
%s
$item_str
";
$result = sprintf($newsTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
return $result;
}
private function transmitMusic($object, $musicArray)
{
$itemTpl = "
<![CDATA[%s]]>
";
$item_str = sprintf($itemTpl, $musicArray['Title'], $musicArray['Description'], $musicArray['MusicUrl'], $musicArray['HQMusicUrl']);
$textTpl = "
%s
";
$result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time());
return $result;
}
//回复多客服消息
private function transmitService($object)
{
$xmlTpl = "
%s
";
$result = sprintf($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);
}
}
}
?>四、其他注意事项
1. 经测试，在自定义菜单中返回多客服消息，无法让用户进入多客服状态。
2. 使用多客服消息后，后续所有消息在一段时间内都将作为客服消息转发，原来的开发模式下的自动回复都将失效！！！
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