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

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;
 }
 }
}