<?php
//屏蔽北上广
$ip = get_client_ip();
// $url = "http://ip.taobao.com/service/getIpInfo.php?ip=".$ip;
$url = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=".$ip;
$data = https_request($url);
$data = json_decode($data, true);
$region = $data['province'];
if($region == '广东' || $region == '北京' || $region == '上海'){
header("Content-type: text/html; charset=utf-8");
echo "<h1>网站升级中</h1>";
die;
}
/**
* 获取访客IP地址
*
* @param integer $type The type
* @param boolean $adv The advance
*
* @return array The client ip.
*/
function get_client_ip($type = 0,$adv=false) {
$type = $type ? 1 : 0;
static $ip = NULL;
if ($ip !== NULL) return $ip[$type];
if($adv){
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
$pos = array_search('unknown',$arr);
if(false !== $pos) unset($arr[$pos]);
$ip = trim($arr[0]);
}elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
}elseif (isset($_SERVER['REMOTE_ADDR'])) {
$ip = $_SERVER['REMOTE_ADDR'];
}
}elseif (isset($_SERVER['REMOTE_ADDR'])) {
$ip = $_SERVER['REMOTE_ADDR'];
}
// IP地址合法验证
$long = sprintf("%u",ip2long($ip));
$ip = $long ? array($ip, $long) : array('0.0.0.0', 0);
return $ip[$type];
}
/**
* 获取接口数据
*
* @param <type> $url The url
*
* @return <type> ( description_of_the_return_value )
*/
function https_request($url){
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
curl_close($curl);
return $output;
}
