微信公众平台DEMO(PHP)


            本人在SAE环境下搭建了CI框架(其实这个小东西用不着用框架的)，直接把代码写在了控制器里面





<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

 

//define your token

define("TOKEN", "109");

 

class Welcome extends CI_Controller {

 

  public function index()

  {

    /*

    $this->load->helper('url');

    $this->load->view('welcome_message');

    */

     

    // use chat response

    $this->responseMsg();

   

  }

   

  // chat response

  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;

      $MsgType = $postObj->MsgType;

      $time = time();

       

      switch($MsgType){

        case('text'):

          $keyword = trim($postObj->Content);

          $textTpl = "<xml>

                <ToUserName><![CDATA[%s]]></ToUserName>

                <FromUserName><![CDATA[%s]]></FromUserName>

                <CreateTime>%s</CreateTime>

                <MsgType><![CDATA[%s]]></MsgType>

                <Content><![CDATA[%s]]></Content>

                </xml>";

          switch($keyword){

            case(1):

              // Need to optimize

              // random read data from jokes

              $sql = 'SELECT * FROM jokes';

              $query = $this->db->query($sql);

              $res = $query->result_array();

              $num_rows = $query->num_rows();

              $key = rand(0, $num_rows - 1); // Notice: The value of key is from 0.

              //$contentStr = $key.'#'.$res[$key ]['content']; // debug

              $contentStr = $res[$key ]['content']; 

              break;

            case(2):

              $contentStr = 'Your fromUsername is: '.$fromUsername; 

              break;             

            case(3):

              $newsTpl = "<xml>

                    <ToUserName><![CDATA[%s]]></ToUserName>

                    <FromUserName><![CDATA[%s]]></FromUserName>

                    <CreateTime>%s</CreateTime>

                    <MsgType><![CDATA[%s]]></MsgType>

                    <ArticleCount>2</ArticleCount>

                     

                    <Articles>

                      <item>

                        <Title><![CDATA[%s]]></Title> 

                        <Description><![CDATA[%s]]></Description>

                        <PicUrl><![CDATA[%s]]></PicUrl>

                        <Url><![CDATA[%s]]></Url>

                      </item>

                      <item>

                        <Title><![CDATA[%s]]></Title>

                        <Description><![CDATA[%s]]></Description>

                        <PicUrl><![CDATA[%s]]></PicUrl>

                        <Url><![CDATA[%s]]></Url>

                      </item>

                    </Articles>

                     

                    </xml> ";

                     

              $resultStr = sprintf($newsTpl, $fromUsername, $toUsername, $time,'news',

                '百度','', 'http://www.baidu.com/img/bdlogo.gif', 'http://www.baidu.com',

                'Google','', '', 'http://www.google.com'); // Notice: Google's logo is not suitable.

              echo $resultStr;

              exit; // Notice: It's exit, not break.                

            case(4):

              $contentStr = "该功能正在开发中，敬请期待..."; 

              break;

               

            /* others */

             

            default:

              $contentStr = "回复数字 选择服务\n";

              $contentStr .= "1 笑话精选\n";

              $contentStr .= "2 获取您的Username...\n";  

              $contentStr .= "3 图文消息示例\n"; 

              $contentStr .= "4 开发中...\n"; 

              break;

          }

          $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, 'text', $contentStr);

          break;

           

        case('image'):

           

          $media_id = $postObj->MediaId;

          $imgTpl = "<xml>

                <ToUserName><![CDATA[%s]]></ToUserName>

                <FromUserName><![CDATA[%s]]></FromUserName>

                <CreateTime>%s</CreateTime>

                <MsgType><![CDATA[%s]]></MsgType>

                <Image>

                  <MediaId><![CDATA[%s]]></MediaId>

                </Image>

                </xml>";

          $resultStr = sprintf($imgTpl, $fromUsername, $toUsername, $time, 'image', $media_id);

          break;

           

          // try get the id of the receive image and analyse

          /*

          $media_id = $postObj->MediaId;

          $textTpl = "<xml>

                <ToUserName><![CDATA[%s]]></ToUserName>

                <FromUserName><![CDATA[%s]]></FromUserName>

                <CreateTime>%s</CreateTime>

                <MsgType><![CDATA[%s]]></MsgType>

                <Content><![CDATA[%s]]></Content>

                </xml>";

          $length = strlen($media_id);

          $contentStr = "I have received the image message you sent, the id of this image is # $media_id #, and the length of media_id is # $length #";

          $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, 'text', $contentStr);

          break;

          */

           

        case('voice'):

          $textTpl = "<xml>

                <ToUserName><![CDATA[%s]]></ToUserName>

                <FromUserName><![CDATA[%s]]></FromUserName>

                <CreateTime>%s</CreateTime>

                <MsgType><![CDATA[%s]]></MsgType>

                <Content><![CDATA[%s]]></Content>

                </xml>"; 

          $contentStr = '你说啥?俺听不见...';

          $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, 'text', $contentStr);

          break;

         

        /* others */

         

        default:

          $resultStr = "Input something...";

          break;

      }

      echo $resultStr;

       

    }else {

      echo "";

      exit;

    }

  }

}