微信公众号开发之文本消息自动回复php代码

发布时间：2020-12-14 17:09:28 所属栏目：资源来源：网络整理

导读：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：下载地址2： 2.wx_sample.php初始代码 //define your token define("TOKEN","weixin"); $wechatObj = new wechatCallbackapiTest(); $wechatOb

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：下载地址2：

2.wx_sample.php初始代码

//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;
}
}
}

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();”。

//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：

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。

//define your token
define("TOKEN",LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim($postObj->Content);
$time = time();
$msgType = $postObj->MsgType;//消息类型
$event = $postObj->Event;//时间类型，subscribe（订阅）、unsubscribe（取消订阅）
$textTpl = "

%s 0 ";

switch($msgType){
case "event":
if($event=="subscribe"){
$contentStr = "Hi,欢迎关注海仙日用百货!"."n"."回复数字'1',了解店铺地址."."n"."回复数字'2',了解商品种类.";
}
break;
case "text":
switch($keyword){
case "1":
$contentStr = "店铺地址："."n"."杭州市江干艮山西路233号新东升市场地下室第一排.";
break;
case "2":
$contentStr = "商品种类:"."n"."杯子、碗、棉签、水桶、垃圾桶、洗碗巾(刷)、拖把、扫把、"
."衣架、粘钩、牙签、垃圾袋、保鲜袋(膜)、剪刀、水果刀、饭盒等.";
break;
default:
$contentStr = "对不起,你的内容我会稍后回复";
}
break;
}
$msgType = "text";
$resultStr = sprintf($textTpl,$contentStr);
echo $resultStr;
}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,SORT_STRING);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );

if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程之家。

（编辑：李大同）

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