PHP实现-获取用户的真实IP
2018-03-21 20:01 By
"Powerless"
2816
0
0
/**
* 获取客户端IP地址
* @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
* @param boolean $adv 是否进行高级模式获取（有可能被伪装）
* @return mixed
*/
public function ip($type = 0, $adv = false)
{
$type = $type ? 1 : 0;
static $ip = null;
if (null !== $ip) {
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]);
}
$ip = trim(current($arr));
} 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 = $long ? [$ip, $long] : ['0.0.0.0', 0];
return $ip[$type];
}
想要知道用户的真实IP不妨用这个方法试试
View in WeChat
Others Discussion
-
初识七层、五层、四层网络协议 Posted on 2021-04-09 16:52
-
投票通过，PHP 8 确认引入 Union Types 2.0 Posted on 2019-11-18 22:22
-
Linux工具 - NM目标文件格式分析 Posted on 2019-04-24 10:29
-
PHP扩展安装 Posted on 2019-06-24 11:28
-
Redis各种数据类型的使用场景举例分析【三】 Posted on 2018-11-22 17:00
-
ACID原则 Posted on 2020-12-17 16:36
-
PHP7不兼容性 Posted on 2018-03-07 15:59
-
MySQL分组 Posted on 2019-11-18 14:00
评 论