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《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
1.PHP示例代码下载下载地址1:/08/yuanma/PHPwx().rar
下载地址2:https://mp./wiki/home/index.html(开始开发-》接入指南-》PHP示例代码下载)
2.wx_sample.PHP初始代码
/**
* 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 = "
%s
0
";
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 == $signature ){
return true;
}else{
return false;
}
}
}
?>
PHP文件中注释掉$wechatObj->valid();,在其下增加一句“$wechatObj->responseMsg();”.
/**
* 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,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./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)
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.
总结
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