<?php
    $db = @new mysqli('localhost', 'root', '', 'formular');

    if(mysqli_connect_errno())
    {
        die("Keine Verbindung zur Datenbank: " .mysqli_connect_error(). "(" .mysqli_connect_errno(). ")");
    }

    $sql = 'SELECT Name, Password
        FROM   login';

    $result = $db->query($sql);
    $user = $result->fetch_assoc();

    $name = $_POST['username'];
    $pass = $_POST['pass'];
    $_POST['formaction'] = "Einloggen";

    if(($name == $user['Name']) && ($pass == $user['Password']))
    {
        echo "<br />Hallo " .$user['Name']. "<br />";
    }
    else
    {
        echo "<br />Du hast dich sicherlich vertippt ;) <br />";
    }

    $result->close();

    unset($result);
?>