      $no = 1;
      foreach ($classrooms as $classroom) : ?>
         <tr>
            <td><?php echo $no++ ?></td>
            <td><?php echo $classroom['name_classroom'] ?></td>
            <td><?php echo $classroom['name_prody'] ?></td>
            <td><?php echo $classroom['name_lecturer'] ?></td>
            <td><?php echo $classroom['year_classroom'] ?></td>