PHP取得用户真实IP

function getIp() {
if($_SERVER['HTTP_CLIENT_IP']) {
 
$ip = $_SERVER['HTTP_CLIENT_IP'];
 
} elseif ($_SERVER['HTTP_X_FORWARDED_FOR']) {
 
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
 
} else {
 
$ip = $_SERVER['REMOTE_ADDR'];
 
}
 
}

中国数据 q：800013911转1018