I'll help create the Instructor Dashboard structure. Here's the PHP implementation: instructorId = $instructorId; $this->dbConnection = $dbConnection; } public function getProfileOverview(): array { $stmt = $this->dbConnection->prepare( "SELECT username, email FROM instructors WHERE id = :id" ); $stmt->execute(['id' => $this->instructorId]); return $stmt->fetch(PDO::FETCH_ASSOC); } public function updatePassword(string $newPassword): bool { $hashedPassword = password_hash($newPassword, PASSWORD_DEFAULT); $stmt = $this->dbConnection->prepare( "UPDATE instructors SET password = :password WHERE id = :id" ); return $stmt->execute([ 'password' => $hashedPassword, 'id' => $this->instructorId ]); } } instructorId = $instructorId; $this->dbConnection = $dbConnection; } public function createClass(string $subjectName, string $classCode): bool { $stmt = $this->dbConnection->prepare( "INSERT INTO classes (instructor_id, subject_name, class_code) VALUES (:instructor_id, :subject_name, :class_code)" ); return $stmt->execute([ 'instructor_id' => $this->instructorId, 'subject_name' => $subjectName, 'class_code' => $classCode ]); } public function getMyClasses(): array { $stmt = $this->dbConnection->prepare( "SELECT id, subject_name, class_code FROM classes WHERE instructor_id = :instructor_id" ); $stmt->execute(['instructor_id' => $this->instructorId]); return $stmt->fetchAll(PDO::FETCH_ASSOC); } } dbConnection = $dbConnection; } public function uploadFile(int $classId, string $fileName, string $filePath): bool { $stmt = $this->dbConnection->prepare( "INSERT INTO class_files (class_id, file_name, file_path) VALUES (:class_id, :file_name, :file_path)" ); return $stmt->execute([ 'class_id' => $classId, 'file_name' => $fileName, 'file_path' => $filePath ]); } public function makeAnnouncement(int $classId, string $message): bool { $stmt = $this->dbConnection->prepare( "INSERT INTO announcements (class_id, message, created_at) VALUES (:class_id, :message, NOW())" ); return $stmt->execute([ 'class_id' => $classId, 'message' => $message ]); } public function getStudents(int $classId): array { $stmt = $this->dbConnection->prepare( "SELECT s.id, s.username, s.email FROM students s JOIN class_students cs ON s.id = cs.student_id WHERE cs.class_id = :class_id" ); $stmt->execute(['class_id' => $classId]); return $stmt->fetchAll(PDO::FETCH_ASSOC); } } setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); if (!isset($_SESSION['instructor_id'])) { header('Location: login.php'); exit(); } $instructorId = $_SESSION['instructor_id']; $dashboard = new InstructorDashboard($instructorId, $db); $classManager = new ClassManager($instructorId, $db); $classActions = new ClassActions($db); // Handle form submissions if ($_SERVER['REQUEST_METHOD'] === 'POST') { if (isset($_POST['create_class'])) { $classManager->createClass($_POST['subject_name'], $_POST['class_code']); } elseif (isset($_POST['update_password'])) { $dashboard->updatePassword($_POST['new_password']); } } $profile = $dashboard->getProfileOverview(); $classes = $classManager->getMyClasses(); } catch (PDOException $e) { die("Database error: " . $e->getMessage()); }