?>
" rel="stylesheet">
    </head>
    <body >
        <?php 
include 'header.php';
?>
        <br>
        <br>
        <div class="container">
            <form role="form" action="add_student.php" method="post">
                <div class="form-group">
                    <label for="course_id" >   Select Course : </label>
                    <select class="form-control" name="course_id" id="course_id">
                        <?php 
$CoursesController->list_courses();
?>
                    </select>

                </div>
                <div class="form-group" >
                    <label for="user_type" >   Select User Type: </label>
                    <select class="form-control" name="user_type" id="user_type" >
                        <?php 
$UsersCoursesController->list_user_types();
?>
                    </select>

                </div>

                <div class="form-group">