微信公眾號(hào)開(kāi)發(fā)之文本消息自動(dòng)回復(fù)php代碼

更新時(shí)間：2016年08月08日 08:50:10 作者：屠龍灬世家

這篇文章主要為大家詳細(xì)介紹了微信公眾號(hào)開(kāi)發(fā)之文本消息自動(dòng)回復(fù)php代碼，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了php微信文本消息自動(dòng)回復(fù) 別代碼，供大家參考，具體內(nèi)容如下

1.PHP示例代碼下載
下載地址1：http://xiazai.jb51.net/201608/yuanma/phpwx(jb51.net).rar
下載地址2：https://mp.weixin.qq.com/wiki/home/index.html（開(kāi)始開(kāi)發(fā)-》接入指南-》PHP示例代碼下載）

2.wx_sample.php初始代碼

<?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.調(diào)用回復(fù)信息方法
在wx_sample.php文件中注釋掉$wechatObj->valid();，在其下增加一句“$wechatObj->responseMsg();”。

<?php
/**
 * wechat php test
 */

//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();//接口驗(yàn)證
$wechatObj->responseMsg();//調(diào)用回復(fù)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.關(guān)鍵詞自動(dòng)回復(fù)和關(guān)注回復(fù)
$keyword保存著用戶微信端發(fā)來(lái)的文本信息。
官方開(kāi)發(fā)者文檔：https://mp.weixin.qq.com/wiki/home/index.html（消息管理-》接收消息-接收事件推送-》1.關(guān)注/取消關(guān)注事件）

關(guān)注事件與一般的文本消息有兩處不同，一是MsgType值是event，二是增加了Event值是subscribe。由于官方文檔（最初的wx_sample.php）沒(méi)有提取這個(gè)參數(shù)，需要我們自己提取。在程序中增加兩個(gè)變量$msgType和$event。

<?php
/**
 * wechat php test
 */

//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();//接口驗(yàn)證
$wechatObj->responseMsg();//調(diào)用回復(fù)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;//消息類型
 $event = $postObj->Event;//時(shí)間類型，subscribe（訂閱）、unsubscribe（取消訂閱）
 $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"){
  $contentStr = "Hi,歡迎關(guān)注海仙日用百貨!"."\n"."回復(fù)數(shù)字'1',了解店鋪地址."."\n"."回復(fù)數(shù)字'2',了解商品種類.";
  } 
  break;
  case "text":
  switch($keyword){
  case "1":
  $contentStr = "店鋪地址："."\n"."杭州市江干艮山西路233號(hào)新東升市場(chǎng)地下室第一排."; 
  break;
  case "2":
  $contentStr = "商品種類:"."\n"."杯子、碗、棉簽、水桶、垃圾桶、洗碗巾(刷)、拖把、掃把、"
   ."衣架、粘鉤、牙簽、垃圾袋、保鮮袋(膜)、剪刀、水果刀、飯盒等.";
  break;
  default:
  $contentStr = "對(duì)不起,你的內(nèi)容我會(huì)稍后回復(fù)";
  }
  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?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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