Xem thông tin từ địa chỉ IP

Link: https://ipinfodb.com/api

function getIPAddress() {
    //whether ip is from the share internet
    if(!empty($_SERVER['HTTP_CLIENT_IP'])) {
        $ip = $_SERVER['HTTP_CLIENT_IP'];
    }
    //whether ip is from the proxy
    elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
     }
    //whether ip is from the remote address
    else{
        $ip = $_SERVER['REMOTE_ADDR'];
    }
    return $ip;
}

#### Return
$ip = getIPAddress();
IP-address: ".$ip.";

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