Untitled

<!Doctype HTML>
<html>

    <head>
        <title>Aufgabe 2</title>
        <meta charset="UTF-8">
        <link rel="stylesheet" type="text/css" href="index.css">
    </head>

    <body>
        <h1 style="text-decoration: underline">Mitarbeiter</h1>
        <select name="list" size="15%" style="width: 40%;">
            <?php Refresh(); ?>
        </select>
        <br>
        <br>
        <a class="inputbox" name="id">ID:</a><br> <input type="number"><br>
        <form method="post" action="">
        <a class="inputbox" name="forename">Forename:</a><br> <input type="text"><br>
        </form>
        <a class="inputbox" name="name">Name:</a><br> <input type="text"><br>
        <a class="inputbox" name="city">City:</a><br> <input type="text"><br><br>
        <form method="post" action="">
            <button type="submit" name="sent">Hinzufügen</button>
        </form>
    </body>

</html>

<?php

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

    function Refresh()
    {
        global $con;
        $query = "SELECT * FROM employee";

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

        $result = $con->query($query);
        while($row = $result->fetch_assoc())
        {
            $option = $row["id"]. " ". $row["forename"]. " ". $row["name"]. " ". $row["city"];
            echo "<option>". $option ."</option>";
        }

        $con->close();
    }

    function AddUser($id, $forename, $name, $city)
    {
        global $con;

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

        echo $forename;
    }

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

?>