Small php contact to telegram script

contact.php

<?php
function get_client_ip()
{
    $ipaddress = '';
    if (isset($_SERVER['HTTP_CLIENT_IP'])) $ipaddress = $_SERVER['HTTP_CLIENT_IP'];
    else if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) $ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
    else if (isset($_SERVER['HTTP_X_FORWARDED'])) $ipaddress = $_SERVER['HTTP_X_FORWARDED'];
    else if (isset($_SERVER['HTTP_FORWARDED_FOR'])) $ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
    else if (isset($_SERVER['HTTP_FORWARDED'])) $ipaddress = $_SERVER['HTTP_FORWARDED'];
    else if (isset($_SERVER['REMOTE_ADDR'])) $ipaddress = $_SERVER['REMOTE_ADDR'];
    else $ipaddress = 'UNKNOWN';
    return $ipaddress;
}

if (empty($_POST["name"]) or empty($_POST["message"]) or empty($_POST["email"]))
{
    die();
}
else
{
    $request = curl_init();

    $ip = get_client_ip();
    $format = "message from : " . $_POST["name"] . "\nemail : " . $_POST["email"] . "\nip : $ip\n";
    if (!empty($_POST["phone"]))
    {
        $format .= "phone : " . $_POST["phone"] . "\n";
    }
    $format .= "message : " . $_POST["message"];
    try
    {

        $params = array(
            "chat_id" => "WHERE TO SEND IT TO",
            "text" => $format
        );
        $token = "YOURBOTTOKEN";
        $url = "https://api.telegram.org/bot$token/sendMessage";

        curl_setopt($request, CURLOPT_POST, true);
        curl_setopt($request, CURLOPT_POSTFIELDS, $params);
        curl_setopt($request, CURLOPT_URL, $url);
        curl_setopt($request, CURLOPT_RETURNTRANSFER, true);

        curl_exec($request);

        echo "MF000";
    }
    catch(Exception $e)
    {
        echo "no";
    }
};