Weather forecast function developed on WeChat public platform, weather forecast on public platform_PHP tutorial

WeChat public platform development of weather forecast function, public platform weather forecast

Recently there is a project requirement to add a weather forecast function to the WeChat public account, using the Internet of Vehicles API provided by Baidu Implementation of the weather query function in V3.0. First, the final rendering:

Project requirements: Have a well-connected WeChat platform and a Baidu registered account. You need to add applications on the Baidu LBS open cloud platform, obtain AK code, PHP code editor, such as EditPlus, etc.

The development steps are introduced in detail below:

Step 1: Preparation

Log in to the WeChat public platform, check whether the server configuration is enabled, whether the URL (server address) has been configured with a Token (token), and is consistent with the Token (token) in the WeChat entrance file written by you, as shown below: Then click Submit, only when the green background prompts the submission success message on the web page, complete the operation of this step

Step 2: WeChat weather forecast data source preparation

Use a registered Baidu account to log in to the Baidu LBS cloud platform, add an application, get access to the application AK, and understand the interface description files corresponding to the Internet of Vehicles API V3.0 and the weather query function, so as to call the required functions on demand. Weather information.

Step 3: WeChat public platform, write interface file jiekou.php

<&#63;php
/*
 无忧电脑技巧网 微信公众号功能源码
 CopyRight 2015 All Rights Reserved
*/
define("TOKEN", "weixin2015");
$wechatObj = new wechatCallbackapiTest();
if (!isset($_GET['echostr'])) {
 $wechatObj->responseMsg();
}else{
 $wechatObj->valid();
}
class wechatCallbackapiTest
{
 //验证签名
 public function valid()
 {
 $echoStr = $_GET["echostr"];
 $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){
  echo $echoStr;
  exit;
 }
 }
 public function responseMsg()
 {
 // $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
 $postStr = file_get_contents("php://input");
 if (!empty($postStr)){
  $this->logger("R ".$postStr);
  $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
  $RX_TYPE = trim($postObj->MsgType);
 $result = "";
  switch ($RX_TYPE)
  {
  case "event":
   $result = $this->receiveEvent($postObj);
   break;
  case "text":
   $result = $this->receiveText($postObj);
   break;
  }
  $this->logger("T ".$result);
  echo $result;
 }else {
  echo "";
  exit;
 }
 }
 private function receiveEvent($object)
 {
 switch ($object->Event)
 {
  case "subscribe":
  $content = "欢迎关注无忧电脑技巧网 ";
  break;
 }
 $result = $this->transmitText($object, $content);
 return $result;
 }
 private function receiveText($object)
 {
 $keyword = trim($object->Content); //获得用户输入的信息
 //判断天气
 if(!empty( $keyword )){ //!empty 函数,判断 $keyword获得的值是否为空
 $city = mb_substr($keyword, 0, 2, 'utf-8'); //取用户输入内容前两个字符,如"黄冈天气" 最终取值"黄冈"
 include("weather.php"); //调用天气接口文件
 $content = getWeatherInfo($city); //执行天气接口文件中的 getWeatherInfo方法.查询 黄冈天气.
 } else{
 $content = date("Y-m-d H:i:s",time())."\n技术支持 无忧电脑技巧网\nwww.51pcjq.com"; //发送其它内容默认回复的内容.
 }
 if(is_array($content)){
 if (isset($content[0]['PicUrl'])){
  $result = $this->transmitNews($object, $content);
 }else if (isset($content['MusicUrl'])){
  $result = $this->transmitMusic($object, $content);
 }
 }else{
 $result = $this->transmitText($object, $content);
 }
 return $result;
 }
 private function transmitText($object, $content)
 {
 if (!isset($content) || empty($content)){
 return "";
 }
 $textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
</xml>";
 $result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);
 return $result;
 }
 private function transmitNews($object, $newsArray)
 {
 if(!is_array($newsArray)){
  return "";
 }
 $itemTpl = " <item>
 <Title><![CDATA[%s]]></Title>
 <Description><![CDATA[%s]]></Description>
 <PicUrl><![CDATA[%s]]></PicUrl>
 <Url><![CDATA[%s]]></Url>
 </item>
";
 $item_str = "";
 foreach ($newsArray as $item){
  $item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);
 }
 $newsTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<Content><![CDATA[]]></Content>
<ArticleCount>%s</ArticleCount>
<Articles>
$item_str</Articles>
</xml>";
 $result = sprintf($newsTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
 return $result;
 }
 private function logger($log_content)
 {
 }
}

Step 4: Use Baidu AutoLink API V3.0 interface, and access the application AK code, number WeChat weather interface source code:

weatger.php

<&#63;php
function getWeatherInfo($cityName){ 
if ($cityName == "" || (strstr($cityName, "+"))){ 
return "发送天气+城市，例如'天气深圳'"; }//用户查询天气,回复关键词 规则 
$url = "http://api.map.baidu.com/telematics/v3/weather&#63;location=".urlencode($cityName)."&output=json&ak=自已申请的百度车联API AK代码";//构建通过百度车联API V3.0查询天气url链接 
$ch = curl_init();//初始化会话 curl_setopt($ch, CURLOPT_URL, $url);//设置会话参数 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//设置会话参数 $output = curl_exec($ch);//执行curl会话 
curl_close($ch);//关闭curl会话 
$result = json_decode($output, true);//函数json_decode() 的功能时将json数据格式转换为数组。
 if ($result["error"] != 0){ 
 return $result["status"]; } 
 $curHour = (int)date('H',time()); 
 $weather = $result["results"][0];//按照微信公众号开发文档,组建设多图文回复信息 
 $weatherArray[] = array("Title" => $weather['currentCity']."当前天气:"."温度:".$weather['weather_data'][0]['temperature'].",".$weather['weather_data'][0]['weather'].","."风力:".$weather['weather_data'][0]['wind'].".", "Description" =>"", "PicUrl" =>"http://weixin.51pcjq.com/img/weather_bg.jpg", "Url" =>""); 
 for ($i = 0; $i < count($weather["weather_data"]); $i++) { 
 $weatherArray[] = array("Title"=>  
 $weather["weather_data"][$i]["date"]."\n".  
 $weather["weather_data"][$i]["weather"]." ".  
 $weather["weather_data"][$i]["wind"]." ".  
 $weather["weather_data"][$i]["temperature"]."", 
 "Description"=>"",  
 "PicUrl"=>(($curHour >= 6)
 && ($curHour < 18))&#63;$weather["weather_data"][$i]["dayPictureUrl"]:$weather["weather_data"][$i]["nightPictureUrl"], "Url"=>""); 
 }
 return $weatherArray;}&#63;>

Notes

The value of WeChat public platform TOKEN must be consistent with the TOKEN value in the WeChat interface file written by yourself

To write PHP code, you need to use professional PHP editing tools, such as EditPlus, Dreamweaver, etc.

In the above weather interface file, the Baidu AutoLink API AK code has been replaced by "Self-applied Baidu AutoLink API AK code: Please fill in it yourself after applying

If you don’t understand something, you can follow my Baidu space. Leave a message and contact me!

The latest code developed for WeChat weather forecast:

 <meta http-equiv="Content-Type" content="text/html; charset=utf" />
 <&#63;php
 header("Content-Type:text/html;charset=UTF-");
 date_default_timezone_set("PRC");
 /**
 * 最开始用的是微信提供的demo老是不成功，用了这个网上下载的才成功
 */
 
 //define your token
 define("TOKEN", "djjc");
 $wechatObj = new wechatCallbackapiTest();
 //微信接入操作，成功接入了直接注释了就行了
 $wechatObj->responseMsg();
 //$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)){
 
 $postObj = simplexml_load_string($postStr, ‘SimpleXMLElement‘, LIBXML_NOCDATA);
 $RX_TYPE = trim($postObj->MsgType);
 
 switch($RX_TYPE)
 {
 case "text":
 $resultStr = $this->handleText($postObj);
 break;
 case "event":
 $resultStr = $this->handleEvent($postObj);
 break;
 default:
 $resultStr = "Unknow msg type: ".$RX_TYPE;
 break;
 }
 echo $resultStr;
 }else {
 echo "";
 exit;
 }
 }
 //测试文字回复
 public function handleText($postObj)
 {
 $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></FuncFlag>
 </xml>"; 
 if(!empty( $keyword ))
 {
 $msgType = "text";
 switch($keyword){
 case "你好":
 $contentStr = "你好!";
 break;
 case "你叫什么名字":
 $contentStr = "我是顶尖机器人";
 break;
//判断是否为天气
 case $keywords+"天气";
 $str = mb_substr($keyword,-,,"UTF-");
 $str_key = mb_substr($keyword,,-,"UTF-");
 if($str=="天气"){
 $data = $this->weather($str_key)->showapi_res_body;
 $data=‘[今天白天]‘.$data->f->day_weather."\n";
 $data=‘[今天夜间]‘.$data->f->night_weather."\n";
 $data=‘[明天白天]‘.$data->f->day_weather."\n";
 $data=‘[明天夜间]‘.$data->f->night_weather."\n";
 $contentStr = $data.$data.$data.$data;
 }
 break;
 default:
 $contentStr = "听不懂您在讲什么";
 break; 
 }
 $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
 echo $resultStr;
 }else{
 echo "Input something...";
 }
 }
 
 public function handleEvent($object)
 {
 $contentStr = "";
 switch ($object->Event)
 {
 case "subscribe":
 $contentStr = "感谢您关注顶尖教程网，在这里您将得到海量免费学习资源！";
 break;
 default :
 $contentStr = "Unknow Event: ".$object->Event;
 break;
 }
 $resultStr = $this->responseText($object, $contentStr);
 return $resultStr;
 }
 
 public function responseText($object, $content)
 {
 $textTpl = "<xml>
 <ToUserName><![CDATA[%s]]></ToUserName>
 <FromUserName><![CDATA[%s]]></FromUserName>
 <CreateTime>%s</CreateTime>
 <MsgType><![CDATA[text]]></MsgType>
 <Content><![CDATA[%s]]></Content>
 <FuncFlag></FuncFlag>
 </xml>";
 $resultStr = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content, $flag);
 return $resultStr;
 }
 
 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 = sha( $tmpStr );
 
 if( $tmpStr == $signature ){
 return true;
 }else{
 return false;
 }
 }
 //天气预报 此处汉字需要处理，想了很多办法才没乱码
 private function weather($k){
 $n=urlencode($k);
 $showapi_appid = ‘‘; //去相关网站申请就行
 $showapi_sign = ‘deafcacefdea‘;
 $showapi_timestamp = date(‘YmdHis‘);
 $areaid=‘‘;
 $paramArr = ‘‘;
 $needHourData=‘‘;
 $url = iconv(‘gbk‘,‘utf-‘,‘http://route.showapi.com/-&#63;‘.‘area=‘.$n.‘&areaid=&needHourData=&needIndex=&needMoreDay=&showapi_appid=‘.$showapi_appid.‘&showapi_timestamp=‘.$showapi_timestamp.‘&showapi_sign=‘.$showapi_sign); 
 $result = file_get_contents($url);
 $result = json_decode($result);
 return $result;
 }
 }
 &#63;>

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