微信开发

本文实例为大家分享了php微信百度天气预报的开发代码，供大家参考，具体内容如下

1.登录百度ak申请：http://www.php.cn/

2.实现天气信息功能

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 = 'http://api.map.baidu.com/telematics/v3/weather?ak=%s&location=%s&output=%s&sk=%s';   $uri = '/telematics/v3/weather';    $location = $cityName;   $output = 'json';   $querystring_arrays = array(    'ak' => $ak,    'location' => $location,    'output' => $output   );    $querystring = http_build_query($querystring_arrays);   //生成sn   $sn = md5(urlencode($uri.'?'.$querystring.$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('H',time());   $weather = $result["results"][0];   $weatherArray[]=array("Title"=>$weather['currentCity']."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.实现天气消息事件

<?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['echostr'])) {  $wechatObj->responseMsg(); }else{  $wechatObj->valid(); }  class wechatCallbackapiTest {  //验证签名  public function valid()  {   $echoStr = $_GET["echostr"];   if($this->checkSignature()){    header('content-type:text');    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, 'SimpleXMLElement', 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")){    $city = str_replace('天气','',$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['Title'], $item['Description'], $item['PicUrl'], $item['Url']);   }   $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($_SERVER['HTTP_APPNAME'])){ //SAE    sae_set_display_errors(false);    sae_debug($log_content);    sae_set_display_errors(true);   }else if($_SERVER['REMOTE_ADDR'] != "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($log_filename, date('H:i:s')." ".$log_content."/r/n", FILE_APPEND);   }  }  } ?>

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