Verbindung DB Server

$servername = "localhost";
$username = "verkäufer";
$password = "";
$dbname = "verkauf";

// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);

if (!$conn)
{
    die("Connection failed: " . mysqli_connect_error());
}
else
{
    echo "SQL Server ist erreichbar";
}

mysqli_close($conn);