微信公众号开发之文本消息自动回复php代码


            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：http://xiazai.zwyuanma.com/201608/yuanma/phpwx(zwyuanma.com).rar

 下载地址2：http://mp.weixin.qq.com/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







<?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();”。







<?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：http://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）



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。







<?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();

 $msgType = $postObj->MsgType;//消息类型

 $event = $postObj->Event;//时间类型，subscribe（订阅）、unsubscribe（取消订阅）

 $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>"; 

  

 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, $fromUsername, $toUsername, $time, $msgType, $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, $timestamp, $nonce);

 // use SORT_STRING rule

 sort($tmpArr, 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中文源码网。