1 /**
 2 *获取天气预报信息
 3 **/
 4 header("Content-type: text/html; charset=utf-8");
 5 class getWeather{
 6     private $ak;
 7
 8     public function __construct($ak){
 9         if($ak){
10             $this->ak=$ak;
11         } else {
12             die('参数错误');exit;
13         }
14
15     }
16
17     /**
18      * 获取城市名称
19      * @param string $ip ip地址(必须为有效ip)
20      * return string $city  城市名称，如武汉
21     */
22     public function getCity($ip=''){
23         if(!$ip){
24             $ip=$this->get_client_ip();
25         }
26         $ak=$this->ak;
27         $content = file_get_contents("http://api.map.baidu.com/location/ip?ak=$ak&ip=$ip&coor=bd09ll");
28         $json = json_decode($content,true);
29         if($json['status']==2){
30             $city='武汉';
31         }else{
32             $address=$json['address'];
33             $cityarr=explode("|", $address);
34             $city=$cityarr['2'];//不带"市",如"武汉",而不是"武汉市"
35         }
36         return $city;
37     }
38
39     /**
40      * 获取天气预报信息
41      * @param string $city  城市名称，如武汉
42      * return array $data 天气信息
43     */
44     public function weatherInfo($city=''){
45         if(!$city){
46             $city=$this->getCity();
47         }
48         $host = "http://jisutqybmf.market.alicloudapi.com";
49         $path = "/weather/query";
50         $method = "GET";
51         $appcode = "1215c3a301254ee79ca773ce9054f2ca";//阿里云appcode
52         $headers = array();
53         array_push($headers, "Authorization:APPCODE " . $appcode);
54         $querys = "city=$city&citycode=citycode&cityid=cityid&ip=ip&location=location";
55         $bodys = "";
56         $url = $host . $path . "?" . $querys;
57
58         $curl = curl_init();
59         curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $method);
60         curl_setopt($curl, CURLOPT_URL, $url);
61         curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
62         curl_setopt($curl, CURLOPT_FAILONERROR, false);
63         curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
64         curl_setopt($curl, CURLOPT_HEADER, false);
65         if (1 == strpos("$".$host, "https://"))
66         {
67             curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
68             curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
69         }
70         $result=curl_exec($curl);
71         $data=json_decode($result,true);
72         return $data;
73     }
74     /**
75     *获取ip
76     */
77     public function get_client_ip(){
78         if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")){
79             $ip = getenv("HTTP_CLIENT_IP");
80         }else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")){
81             $ip = getenv("HTTP_X_FORWARDED_FOR");
82         }else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
83             $ip = getenv("REMOTE_ADDR");
84         else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))
85             $ip = $_SERVER['REMOTE_ADDR'];
86         else
87             $ip = "unknown";
88         return($ip);
89     }
90 }
91 $baiduak='CiEwAVN72cVAuHLzNRAMjzpY';//百度地图api的密钥
92 $wea=new getWeather($baiduak);
93 $json=$wea->weatherInfo();
94 print_r($json);exit;