百度API经纬度和地址互相查询

1. /** 
2.  * 获取地址对应的坐标 
3.  * @param $address 
4.  * @return array 
5.  */  
6. function getAddressPoint($address){  
7.     $lng = 0;  
8.     $lat = 0;  
9.     $url = \'http://api.map.baidu.com/geocoder?output=json&address=\' . urlencode($address);  
10.     if(function_exists(\'curl_init\')) {  
11.         $ch = curl_init();  
12.         curl_setopt($ch, CURLOPT_URL, $url);  
13.         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  
14.         curl_setopt($ch, CURLOPT_HEADER, 0);  
15.         $data = curl_exec($ch);  
16.         curl_close($ch);  
17.     }else{  
18.         $data = file_get_contents($url,false,stream_context_create(array(  
19.             "http"=>array(  
20.                 "method"=>"GET",  
21.                 "timeout"=>1  
22.             ),  
23.         )));  
24.     }  
25.   
26.     $data = json_decode($data,true);  
27.     if($data && $data[\'status\'] == \'OK\' && isset($data[\'result\']) && isset($data[\'result\'][\'location\']))  
28.     {  
29.         $lng = $data[\'result\'][\'location\'][\'lng\'];  
30.         $lat = $data[\'result\'][\'location\'][\'lat\'];  
31.     }  
32.     return array($lng,$lat);  
33. }  
34.   
35. /** 
36.  * 逆地理编码专属请求 
37.  * User: Lg 
38.  * Date: 2016/4/11 
39.  * @param $address 
40.  * @return array 
41.  */  
42. function getAddress($lat,$lng){  
43.     $location = $lat.\',\'.$lng;  
44.     $url = \'http://api.map.baidu.com/geocoder?callback=renderReverse&location=\'.$location.\'&output=json&pois=1\';  
45.     if(function_exists(\'curl_init\')) {  
46.         $ch = curl_init();  
47.         curl_setopt($ch, CURLOPT_URL, $url);  
48.         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  
49.         curl_setopt($ch, CURLOPT_HEADER, 0);  
50.         $data = curl_exec($ch);  
51.         curl_close($ch);  
52.     }else{  
53.         $data = file_get_contents($url,false,stream_context_create(array(  
54.             "http"=>array(  
55.                 "method"=>"GET",  
56.                 "timeout"=>1  
57.             ),  
58.         )));  
59.     }  
60.   
61.     $data = json_decode($data,true);  
62.     if($data && $data[\'status\'] == \'OK\' && isset($data[\'result\']) && isset($data[\'result\'][\'addressComponent\']))  
63.     {  
64.         $province = $data[\'result\'][\'addressComponent\'][\'province\'];  
65.         $city = $data[\'result\'][\'addressComponent\'][\'city\'];  
66.         $district = $data[\'result\'][\'addressComponent\'][\'district\'];  
67.     }  
68.     return array($province,$city,$district);  
69. }