微信公众号天气查询接口实例

这是来自百度API的一个天气查询的接口，支持历史7天和未来4天的天气情况查询，接口不错，分享给大家。

接口申请地址：http://apistore.baidu.com/apiworks/servicedetail/112.html

首先，获取一下apikey（貌似需要手机验证码认证下）

我调用的是历史7天和未来4天的接口，接口地址是：

http://apis.baidu.com/apistore/weatherservice/recentweathers

我将这个天气查询的功能集成在了微信公众平台上，支持未来4天天气查询，包括：当前温度、pm值、风向、风力、最高温度、最低温度、天气状态的查询，效果如下：

闲话不多说，我就喜欢来点直接的，核心代码如下：

 1 //接收到文本信息
 2     private function receiveText($object){
 3         //多个空格缩为一个
 4         $keyword = $object->Content;
 5         $keyword=preg_replace("/\s(?=\s)/","\\1",$keyword);
 6         $funcFlag = 0;
 7         if(strpos($keyword," ")){
 8             //echo ‘有空格‘;
 9             $arr = explode(" ",$keyword);
10             if($arr[0]=="天气"){
11                 $dateArray = array();
12                 $ch = curl_init();
13                 $city=urlencode($arr[1]);
14                 $url = ‘http://apis.baidu.com/apistore/weatherservice/recentweathers?cityname=‘.$city;
15                 $header = array(
16                     ‘apikey: 6512ad3a465e3a9e3d0d1da56639626c‘,
17                 );
18                 curl_setopt($ch, CURLOPT_HTTPHEADER  , $header);
19                 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
20                 curl_setopt($ch , CURLOPT_URL , $url);
21                 $res = curl_exec($ch);
22                 $data = json_decode($res,true);
23                 $cityname=$data[‘retData‘][‘city‘];
24                 $citydate=$data[‘retData‘][‘today‘][‘date‘];
25                 $cityweek=$data[‘retData‘][‘today‘][‘week‘];
26                 $citytemp=$data[‘retData‘][‘today‘][‘curTemp‘];
27                 $citypm=$data[‘retData‘][‘today‘][‘aqi‘];
28                 $cityhightemp=$data[‘retData‘][‘today‘][‘hightemp‘];
29                 $citylowtemp=$data[‘retData‘][‘today‘][‘lowtemp‘];
30                 $citytype=$data[‘retData‘][‘today‘][‘type‘];
31                 $cityfengli=$data[‘retData‘][‘today‘][‘fengli‘];
32                 $cityfengxiang=$data[‘retData‘][‘today‘][‘fengxiang‘];
33                 $cityforecast=$data[‘retData‘][‘forecast‘];
34
35                 $out="今日温度：".$citylowtemp."~".$cityhightemp."\n\r"."当前温度：".$citytemp."\n\r"."天气情况：".$citytype."\n\r"."PM2.5值：".$citypm."\n\r风向风力：".$cityfengxiang." ".$cityfengli;
36                 $dateArray[] = array("Title"=>$cityname."\n\r".$citydate." ".$cityweek,"Description"=>"","Picurl"=>"","Url" =>"");
37                 $dateArray[] = array("Title"=>$out,"Description"=>"","Picurl"=>"","Url" =>"");
38                 for($i=0;$i<count($cityforecast);$i++){
39                     $outstr="? ".$cityforecast[$i]["date"]." ".$cityforecast[$i]["week"]."\n\r气温：".$cityforecast[$i]["lowtemp"]."~".$cityforecast[$i]["hightemp"]."\n\r风力：".$cityforecast[$i]["fengxiang"]." ".$cityforecast[$i]["fengli"]."\n\r天气：".$cityforecast[$i]["type"];
40                     $dateArray[] = array("Title"=>$outstr,"Description"=>"","Picurl"=>"","Url" =>"");
41                 }
42                 $resultStr = $this->transmitNews($object, $dateArray, $funcFlag);
43             }
44         }else{
45             //echo ‘没有空格‘;
46             if($keyword=="天气"){
47                 $dateArray = array();
48                 $dateArray[] = array("Title"=>"查询格式错误","Description"=>"","Picurl"=>"","Url" =>"");
49                 $dateArray[] = array("Title"=>"正确格式例：天气 北京","Description"=>"","Picurl"=>"","Url" =>"");
50                 $resultStr = $this->transmitNews($object, $dateArray, $funcFlag);
51             }
52         }
53         return $resultStr;
54     }

查询格式：“天气 城市名”