query("SELECT DATABASE() AS db_name, NOW() AS server_time"); $row = $result ? $result->fetch_assoc() : null; echo json_encode([ "status" => "success", "db" => $row["db_name"] ?? null, "server_time" => $row["server_time"] ?? null, "host_env" => getenv("DB_HOST") ?: null, "port_env" => getenv("DB_PORT") ?: null, "user_env" => getenv("DB_USER") ?: null, ]);