if (isset($_POST['upload_magazines'])) { require_once '../private/File_Manager.php'; $manager = new File_Manager(); $file = $_FILES['upload_file']; $uploaded = upload_file($file); if (strlen($uploaded) == 34) { $manager->Upload_Magazines('../files/' . $uploaded); header("Location: ../Librarian.php?page=library_magazine"); exit; } else { } } if (isset($_POST['Delete_Student'])) { require_once '../private/LMS_Engine.php'; $engine = new LMS_Engine(); $engine->delete_students($_POST['STD_id']); header("Location: ../Librarian.php?page=add_new_student"); exit; } if (isset($_POST['Update_Student'])) { require_once '../private/LMS_Engine.php'; $engine = new LMS_Engine(); $file = $_FILES['upload_image']; if (isset($_FILES['upload_image'])) { $user_id = $_POST['STD_id']; $uploaded = upload_image($file); if (strlen($uploaded) == 34) { $val = $engine->update_students($_POST['STD_id'], $_POST['name'], $_POST['grade'], $_POST['section'], $uploaded); if ($val == 1) { header("Location: ../Librarian.php?page=add_new_student"); exit;