int rph_id = Integer.parseInt(request.getParameter("rph_id"));
    String rph_date = request.getParameter("rph_date");
    String rph_time = request.getParameter("rph_time");
    String rph_type = request.getParameter("rph_type");
    int teacher_id = Integer.parseInt(request.getParameter("teacher_id"));
    int subject_id = Integer.parseInt(request.getParameter("subject_id"));
    String rph_submitstatus = null;
    String rph_comment = null;

    RPHS rph = new RPHS(rph_date, rph_time, rph_type, rph_submitstatus, rph_comment, teacher_id, subject_id, false);
    rph = RphDAO.getRph(rph);