0) {
$rack = $sql->single(
"SELECT * FROM racks WHERE id = ?",
"i",
[$rackId]
);
}
$isEdit = !empty($rack);
$pageTitle = $isEdit ? "Rack bearbeiten: " . htmlspecialchars($rack['name']) : "Neues Rack";
// =========================
// Floors laden
// =========================
$floors = $sql->get("SELECT id, name FROM floors ORDER BY name", "", []);
?>