1   //天气预报
 2             $ch = curl_init();
 3             $url = "http://www.baidu.com/home/other/data/weatherInfo?city=$city";
 4 
 5             // 添加apikey到header
 6             curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10); // 设置header(很重要,第二个参数填什么数字)
 7             curl_setopt($ch, CURLOPT_RETURNTRANSFER, 10);
 8             // 执行HTTP请求
 9             curl_setopt($ch, CURLOPT_URL, $url);
10             $res = curl_exec($ch);
11             $arr = (json_decode($res, true)["data"]['weather']['content']['tomorrow']);
12             $arr['temp'] = explode("~", $arr['temp']);
13             $array['city'] = $city;
14             $data['weather'] = $arr['condition'];
15             $data['l_tmp'] = (int)$arr['temp'][0];
16             $data['h_tmp'] = (int)$arr['temp'][1];
天气1(不加市)

 

 1  //获取天气信息
 2     public function get_weather()
 3     {
 4         $rules = ['city'];
 5         if (true == self::is_empty($rules)) {
 6         $city = I("post.city");
 7         $url="http://wthrcdn.etouch.cn/WeatherApi?city=$city";
 8      //   $data=preg_replace('/<!--+.*-->/','',$data);
 9         //把gbk格式转为utf-8
10      //   $data  = iconv('GBK','UTF-8', $data);
11         $curl=$this->curl_get($url,true);  //下载天气网页内容并且解压
12         $xml=$this->FromXml($curl);   //把xml转化为json格式
13         $array=$this->data($xml,$city);  //拿到json格式获取需要的数据
14         $this->send($array);
15         } else {
16             $this->send("数据格式有误", 0);
17         }
18     }
19 
20 
21     /**将xml转为array
22      * @param $xml
23      * @return mixed
24      */
25     function FromXml($xml)
26     {
27         if (empty($xml))
28             return 0;//xml数据异常
29         libxml_disable_entity_loader(true);
30         return json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
31     }
32 
33     function curl_get($url, $gzip=false){
34         $curl = curl_init($url);
35         curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // 设置cURL 参数，要求结果保存到字符串中还是输出到屏幕上。
36         curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10); // 设置header(很重要,第二个参数填什么数字)
37         if($gzip) curl_setopt($curl, CURLOPT_ENCODING, "gzip"); //解压
38         $content = curl_exec($curl);// 运行cURL，请求网页
39         curl_close($curl);
40         return $content;
41     }
42 
43     //需要的数据
44     public function data($data,$city){
45         $array['city']=$city;
46         $array['wendu']=$data['wendu'];
47         if(!empty($data['environment']['pm25'])){
48             $array['aqi']=$data['environment']['aqi'];
49             $array['pm25']=$data['environment']['pm25'];
50             $array['quality']=$data['environment']['quality'];
51         }
52         $array['high']=substr($data['forecast']['weather'][0]['high'],7,2);
53         $array['low']=substr($data['forecast']['weather'][0]['low'],7,2);
54         $array['type']=$data['forecast']['weather'][0]['day']['type'];
55         $array['zhishus']=$data['zhishus']['zhishu'][0];
56         return $array;
57     }
天气2,解压,xml转json