PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, PDO::ATTR_EMULATE_PREPARES => false, ] ); } catch (PDOException $e) { error_log("Database connection failed: " . $e->getMessage()); die("Database connection failed. Please try again later."); } /** * Return a shared PDO connection instance. * * @return PDO */ function getDBConnection(): PDO { global $pdo; if (!isset($pdo)) { throw new RuntimeException('Database connection not initialized'); } return $pdo; } ?>