<?php

    $servername = "localhost";
    $username = "user";
    $password = "admin";
    $dbname = "aufgabe_02";
    $con = new mysqli($servername, $username, $password, $dbname);

    function Refresh()
    {
        if($con->connect_error)
        {
            die("Connection Problem: ". $con->connect_error);
        }
    }

    function AddUser($id, $forename, $name, $city)
    {
        if($con->connect_error)
        {
            die("Connection Problem: ". $con->connect_error);
        }

        echo $forename;
    }

    if(isset($_POST['sent']))
    {
        echo $_POST("forename");
    }

?>