通过IP地址取得所在国家的PHP代码

2. function getLocationInfoByIp(){
3. $client = @$_SERVER['HTTP_CLIENT_IP'];
4. $forward = @$_SERVER['HTTP_X_FORWARDED_FOR'];
5. $remote = @$_SERVER['REMOTE_ADDR'];
6. $result = array('country'=>'', 'city'=>'');
7. if(filter_var($client, FILTER_VALIDATE_IP)){
8. $ip = $client;
9. }elseif(filter_var($forward, FILTER_VALIDATE_IP)){
10. $ip = $forward;
11. }else{
12. $ip = $remote;
13. }
14. $ip_data = @json_decode
15. (file_get_contents("http://www.geoplugin.net/json.gp?ip=".$ip));
16. if($ip_data && $ip_data->geoplugin_countryName != null){
17. $result['country'] = $ip_data->geoplugin_countryCode;
18. $result['city'] = $ip_data->geoplugin_city;
19. }
20. return $result;
21. }
22. ?>

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PHP