$db = new mysqli('localhost','root','','books');
        if(mysqli_connect_errno())
        {
            echo "bir hata oluştu";
            exit();
        }
$query = "INSERT INTO books VALUES ('ISBN','AUTHOR','TITLE','45.45')";
$result = $db->query($query);
if($result) {
    echo "eklendi";
    } else {
    echo "eklenemedi";
    }
    $db->close();