复制代码 代码如下:
function getip() {
$IP=getenv("REMOTE_ADDR");
$IP_ = getenv("HTTP_X_FORWARDED_FOR");
if (($IP_ != "") && ($IP_ != "unknown")) $IP=$IP_;
return $IP;
}

下面这个比较好的
复制代码 代码如下:
function getIP()
{
if (isset($_SERVER)) {
if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {
$realip = $_SERVER["HTTP_X_FORWARDED_FOR"];
} elseif (isset($_SERVER["HTTP_CLIENT_IP"])) {
$realip = $_SERVER["HTTP_CLIENT_IP"];
} else {
$realip = $_SERVER["REMOTE_ADDR"];
}
} else {
if (getenv("HTTP_X_FORWARDED_FOR")) {
$realip = getenv( "HTTP_X_FORWARDED_FOR");
} elseif (getenv("HTTP_CLIENT_IP")) {
$realip = getenv("HTTP_CLIENT_IP");
} else {
$realip = getenv("REMOTE_ADDR");
}
}
return $realip;
}