" id="<?php 
                    echo $key;
                    ?>
" scope="col"><?php 
                    echo $col;
                    ?>
</th>
										<?php 
                    $n++;
                }
                ?>
								</tr>
								</thead>

								<?php 
                foreach ($student_search->get_results() as $user) {
                    $style = isset($style) && 'alternate' == $style ? '' : ' alternate';
                    $user_object = new Student($user->ID);
                    $modules = Unit_Module::get_modules($current_unit->ID);
                    $input_modules_count = 0;
                    foreach ($modules as $mod) {
                        $class_name = $mod->module_type;
                        if (class_exists($class_name)) {
                            if (constant($class_name . '::FRONT_SAVE')) {
                                $input_modules_count++;
                            }
                        }
                    }
                    $current_row = 0;
                    foreach ($modules as $mod) {
                        $class_name = $mod->module_type;
//search for students
if (isset($_GET['classes'])) {
    $classes = $_GET['classes'];
} else {
    $classes = 'all';
}
if ($classes !== 'all') {
    $args = array('meta_query' => array(array('key' => $class_meta_query_key, 'value' => $classes)));
} else {
    $args = array('meta_query' => array(array('key' => $class_meta_query_key)));
}
$additional_url_args = array();
$additional_url_args['course_id'] = $current_course_id;
$additional_url_args['classes'] = urlencode($classes);
$student_search = new Student_Search('', $page_num, array(), $args, $additional_url_args);
foreach ($student_search->get_results() as $user) {
    $user_object = new Student($user->ID);
    $roles = $user_object->roles;
    $role = array_shift($roles);
    $style = ' alternate' == $style ? '' : ' alternate';
    ?>
				<tr id='user-<?php 
    echo $user_object->ID;
    ?>
' class="<?php 
    echo $style;
    ?>
">
					<th scope='row' class='check-column'>
						<input type='checkbox' name='users[]' id='user_<?php 
    echo $user_object->ID;
                ?>
" scope="col"><?php 
                echo $col;
                ?>
</th>
					<?php 
                $n++;
            }
            ?>
			</tr>
			</thead>

			<tbody>
			<?php 
            $style = '';
            foreach ($wp_user_search->get_results() as $user) {
                $user_object = new Student($user->ID);
                $roles = $user_object->roles;
                $role = array_shift($roles);
                $style = 'alternate' == $style ? '' : 'alternate';
                ?>
				<tr id='user-<?php 
                echo $user_object->ID;
                ?>
' class="<?php 
                echo $style;
                ?>
">
					<th scope='row' class='check-column'>
						<input type='checkbox' name='users[]' id='user_<?php 
                echo $user_object->ID;