ip获取位置

 $ip = $_SERVER["REMOTE_ADDR"];
 $url = "http://ip.taobao.com/service/getIpInfo.php?ip=".$ip;
 $json = file_get_contents($url);
 $arr = json_decode($json);
 echo '<pre>';
 var_dump($arr);

 echo $arr->data->region;
 echo $arr->data->city;
 echo $arr->data->ip;