</div> <div class="form-group Category" style="display: none"> <label>Category : </label> <select name="<?php echo tpl_category::category() . '_' . tpl_category::id(); ?> " id="<?php echo tpl_category::category() . '_' . tpl_category::id(); ?> " class="form-control"> <?php echo $class_students->get_all_category(); ?> </select> </div> <div class="form-group companies" style="display: none"> <label>Companies : </label> <select name="<?php echo tpl_companies::companies() . '_' . tpl_companies::id(); ?> " id="<?php echo tpl_companies::companies() . '_' . tpl_companies::id(); ?> " class="form-control">