prepare( "INSERT INTO books (title, author, isbn, description, qr_code_hash) VALUES (:title, :author, :isbn, :description, :qr_code_hash)" ); if ($stmt->execute([ ':title' => $title, ':author' => $author, ':isbn' => $isbn, ':description' => $description, ':qr_code_hash' => $qr_code_hash ])) { $success = "Book added successfully!"; } else { $errors[] = "Failed to add book."; } } catch (PDOException $e) { $errors[] = "Database error: " . $e->getMessage(); } } } require_once __DIR__ . '/includes/header.php'; ?>

Add a New Book