$results = MySpace::validate_data($users);
		$errors = $results['errors'];
		$users = $results['users'];

		if (count($errors) == 0) {
			if (!empty($id_session)) {
				$tbl_session_rel_course	= Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
				// Selecting all the courses from the session id requested.
				$sql = "SELECT course_code FROM $tbl_session_rel_course WHERE id_session='$id_session'";
				$result = Database::query($sql);
				$course_list = array();
				while ($row = Database::fetch_array($result)) {
					$course_list[] = $row['course_code'];
				}
				$errors = MySpace::get_user_creator($users, $course_list, $id_session);
				$users = MySpace::check_all_usernames($users, $course_list, $id_session);
				if (count($errors) == 0) {
					MySpace::save_data($users, $course_list, $id_session);
				}
			} else {
				header('Location: course.php?id_session='.$id_session.'&action=error_message&message='.urlencode(get_lang('NoSessionId')));
			}
		}
	} else {
		header('Location: course.php?id_session='.$id_session.'&action=error_message&message='.urlencode(get_lang('NoUsersRead')));
	}
}

Display :: display_header($tool_name);

if ($_FILES['import_file']['size'] == 0 && $_POST) {