PHP ip 查找 城市名
header("content-type:text/html;charset=utf-8");
date_default_timezone_set("Asia/Shanghai");
error_reporting(0);
// 根据IP判断城市
$user_ip = $_SERVER['REMOTE_ADDR'];
$url ="http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=$user_ip";
$address = file_get_contents($url);
$address_arr = json_decode($address); //返回对象，需要转换为数组