《PHP编程:微信公众号开发之文本消息自动回复php代码》要点:
本文介绍了PHP编程:微信公众号开发之文本消息自动回复php代码,希望对您有用。如果有疑问,可以联系我们。
本文实例为大家分享了php微信文本消息自动回复 别代码,供大家参考,具体内容如下PHP学习
1.PHP示例代码下载
下载地址1:http://xiazai.jb51.net/201608/yuanma/phpwx(jb51.net).rar
下载地址2:https://mp.weixin.qq.com/wiki/home/index.html(开始开发-》接入指南-》PHP示例代码下载) PHP学习
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2.wx_sample.php初始代码
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- <?php
- /**
- * wechat php test
- */
- //define your token
- define("TOKEN", "weixin");
- $wechatObj = new wechatCallbackapiTest();
- $wechatObj->valid();
- 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();
- $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>";
- if(!empty( $keyword ))
- {
- $msgType = "text";
- $contentStr = "Welcome to wechat world!";
- $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
- echo $resultStr;
- }else{
- echo "Input something...";
- }
- }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 == $signature ){
- return true;
- }else{
- return false;
- }
- }
- }
- ?>
3.调用回复信息方法
在wx_sample.php文件中注释掉$wechatObj->valid();,在其下增加一句“$wechatObj->responseMsg();”.
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- <?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();
- $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>";
- if(!empty( $keyword ))
- {
- $msgType = "text";
- $contentStr = "Welcome to wechat world!";
- $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
- echo $resultStr;
- }else{
- echo "Input something...";
- }
- }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;
- }
- }
- }
- ?>
4.关键词自动回复和关注回复
$keyword保存着用户微信端发来的文本信息.
官方开发者文档:https://mp.weixin.qq.com/wiki/home/index.html(消息管理-》接收消息-接收事件推送-》1.关注/取消关注事件)PHP学习
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关注事件与一般的文本消息有两处不同,一是MsgType值是event,二是增加了Event值是subscribe.由于官方文档(最初的wx_sample.php)没有提取这个参数,需要我们自己提取.在程序中增加两个变量$msgType和$event.
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