WeChat development-weather forecast function

This article mainly introduces the relevant information of Baidu weather forecast developed by PHP WeChat in detail. It has certain reference value. Interested friends can refer to it.

The examples in this article are shared with everyone. The development code of php WeChat Baidu weather forecast is for your reference. The specific content is as follows

1. Log in to Baidu ak to apply:http://www.php.cn/

2. Implement weather information function

Weather.php

<?php 
/** 
 * 使用百度天气预报接口获取城市天气信息案例实现 
 */ 
 
 //获取城市天气信息 
 function getWeatherInfo($cityName){ 
  if($cityName == "" || (strstr($cityName,"+"))){ 
   return "发送城市加天气,例如北京天气"; 
  } 
  //获取到的ak 
  $ak = your ak; 
  //获取到的sk 
  $sk = your sk; 
  //调用接口 
  $url = &#39;http://api.map.baidu.com/telematics/v3/weather?ak=%s&location=%s&output=%s&sk=%s&#39;; 
  $uri = &#39;/telematics/v3/weather&#39;; 
 
  $location = $cityName; 
  $output = &#39;json&#39;; 
  $querystring_arrays = array( 
   &#39;ak&#39; => $ak, 
   &#39;location&#39; => $location, 
   &#39;output&#39; => $output 
  ); 
 
  $querystring = http_build_query($querystring_arrays); 
  //生成sn 
  $sn = md5(urlencode($uri.&#39;?&#39;.$querystring.$sk)); 
  $targetUrl = sprintf($url,$ak,urlencode($location),$output,$sn); 
 
  $ch = curl_init(); 
  curl_setopt($ch,CURLOPT_URL,$targetUrl); 
  curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); 
  $result = curl_exec($ch); 
  curl_close($ch); 
  $result = json_decode($result,true); 
 
  if($result["error"]!=0){ 
   return $result["status"]; 
  } 
 
  $curHour = (int)date(&#39;H&#39;,time()); 
  $weather = $result["results"][0]; 
  $weatherArray[]=array("Title"=>$weather[&#39;currentCity&#39;]."天气预报","Description"=>"","PicUrl"=>"","Url"=>""); 
  for($i = 0;$i<count($weather["weather_data"]);$i++){ 
   $weatherArray[] = array("Title"=> 
    $weather["weather_data"][$i]["data"]."\n". 
    $weather["weather_data"][$i]["weather"]. 
    $weather["weather_data"][$i]["wind"]. 
    $weather["weather_data"][$i]["temperature"], 
    "Description"=>"", 
    "PicUrl"=>(($curHour>=6)&&($curHour< 
    18))?$weather["weather_data"][$i]["dayPictureUrl"]:$weather["weather_data"][$i]["nightPictureUrl"],"URL"=>"" 
   ); 
  } 
  return $weatherArray; 
 }

3. Implement weather message events

<?php 
/* 
 CopyRight 2016 All Rights Reserved 
*/ 
 
define("TOKEN", "weixin"); 
/** 
 * 百度天气预报案例实现 
 * 实现思路： 
 * 1.申请ak、sk 
 * 2.使用天气预报接口 
 * 3.实现天气信息功能 
 * 4.实现事件响应功能 
 */ 
$wechatObj = new wechatCallbackapiTest(); 
if (!isset($_GET[&#39;echostr&#39;])) { 
 $wechatObj->responseMsg(); 
}else{ 
 $wechatObj->valid(); 
} 
 
class wechatCallbackapiTest 
{ 
 //验证签名 
 public function valid() 
 { 
  $echoStr = $_GET["echostr"]; 
  if($this->checkSignature()){ 
   header(&#39;content-type:text&#39;); 
   echo $echoStr; 
   exit; 
  } 
 } 
 
 public 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; 
  } 
 } 
 
 //响应消息 
 public function responseMsg() 
 { 
  $postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; 
  if (!empty($postStr)){ 
   $this->logger("R ".$postStr); 
   $postObj = simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA); 
   $RX_TYPE = trim($postObj->MsgType); 
 
   //消息类型分离 
   switch ($RX_TYPE) 
   { 
    case "event": 
     $result = $this->receiveEvent($postObj); 
     break; 
    case "text": 
     $result = $this->receiveText($postObj); 
     break; 
    default: 
     $result = "unknown msg type: ".$RX_TYPE; 
     break; 
   } 
   echo $result; 
  }else { 
   echo ""; 
   exit; 
  } 
 } 
 
 //接收事件消息 
 public function receiveEvent($object) 
 { 
  $content = ""; 
  switch ($object->Event) 
  { 
   case "subscribe": 
    $content = "欢迎关注Nicky的公众号 "; 
    $content .= (!empty($object->EventKey))?("\n来自二维码场景 ".str_replace("qrscene_","",$object->EventKey)):""; 
    break; 
   case "unsubscribe": 
    $content = "取消关注"; 
    break; 
  } 
  $result = $this->transmitText($object, $content); 
  return $result; 
 } 
 
 //接收文本消息 
 public function receiveText($object) 
 { 
  $keyword = trim($object->Content); 
 
  //自动回复模式 
 
  if (strstr($keyword, "天气")){ 
   $city = str_replace(&#39;天气&#39;,&#39;&#39;,$keyword); 
   include("weather.php"); 
   $content = getWeatherInfo($city); 
  } 
  $result = $this->transmitNews($object, $content); 
  return $result; 
 } 
 
 //回复图文消息 
 public 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[&#39;Title&#39;], $item[&#39;Description&#39;], $item[&#39;PicUrl&#39;], $item[&#39;Url&#39;]); 
  } 
  $xmlTpl = "<xml> 
<ToUserName><![CDATA[%s]]></ToUserName> 
<FromUserName><![CDATA[%s]]></FromUserName> 
<CreateTime>%s</CreateTime> 
<MsgType><![CDATA[news]]></MsgType> 
<ArticleCount>%s</ArticleCount> 
<Articles> 
$item_str</Articles> 
</xml>"; 
 
  $result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray)); 
  return $result; 
 } 
 
 
 //日志记录 
 public function logger($log_content) 
 { 
  if(isset($_SERVER[&#39;HTTP_APPNAME&#39;])){ //SAE 
   sae_set_display_errors(false); 
   sae_debug($log_content); 
   sae_set_display_errors(true); 
  }else if($_SERVER[&#39;REMOTE_ADDR&#39;] != "127.0.0.1"){ //LOCAL 
   $max_size = 10000; 
   $log_filename = "log.xml"; 
   if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);} 
   file_put_contents($log_filename, date(&#39;H:i:s&#39;)." ".$log_content."\r\n", FILE_APPEND); 
  } 
 } 
 
} 
?>

The above is the entire content of this article, I hope it will be helpful to everyone's learning, and I also hope that everyone will support Script Home.

The above is the detailed content of WeChat development-weather forecast function. For more information, please follow other related articles on the PHP Chinese website!