php微信公众号开发之关键词回复

Z时代
2024-01-10
分类：IT

本文实例为大家分享了php微信公众号开发之关键词回复的具体代码，供大家参考，具体内容如下

目标:

消息回复

关键词回复

utf8编码

index.php


<?php
/**
 * wechat php test
 */
//define your token
define("TOKEN", "jiekou");
$wechatObj = new wechatCallbackapiTest();
$wechatObj->responseMsg();
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)){
        $postObj = simplexml_load_string($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 ))
        {
          $msgType = "text";
          switch ($keyword)
          {
          case "1";
          $contentStr = "公司简介!";
          break;
          case "2";
          $contentStr = "最新优惠!";
          break;
          default;
          $contentStr = "欢迎光临!";
          }
          $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
          echo $resultStr;
        }else{
          echo "Input something...";
        }
    }else {
      echo "";
      exit;
    }
  }
  private function checkSignature()
  {
    $signature = $_GET["signature"];
    $timestamp = $_GET["timestamp"];
    $nonce = $_GET["nonce"];  
    $token = TOKEN;
    $tmpArr = array($token, $timestamp, $nonce);
    sort($tmpArr);
    $tmpStr = implode( $tmpArr );
    $tmpStr = sha1( $tmpStr );
    if( $tmpStr == $signature ){
      return true;
    }else{
      return false;
    }
  }
}
?>