* foreach inside foreach codeigniter 2?

Question

In codeigniter 2.1 I'm trying to display channels by category. So if i have a category called Film, i should see a list of Channels within Film. I tried a nested foreach loop to accomplish this but can't seem to get it to work.

My tables structure is something like this but more complicated:

• My model:

  <?php
  
  class Pages_model extends CI_Model {
  
  
  function get_channels_by_categ_tv()
  {
  
    $this->db->select('categories.category_name, channels.channel_name');
    $this->db->from('type_categ');
    $this->db->join('categories', 'categories.category_id = type_categ.category_id');
    $this->db->join('channels', 'channels.channel_id = type_categ.channel_id');
    $this->db->order_by('categories.category_id');
  //$this->db->group_by(array('categories.category_id')); 
    $query = $this->db->get();
  
    if($query->num_rows() == 0)
    {
      #no channels
      return false;
    }
  
    return $query->result_array();
  }
  
  }
  

• in the view:

            <ul class="slides">
              <li>
                  <?php foreach ($category_chaneels as $category): ?>
                  <div class="programe-tv_link">
                      <p><?=$category['category_name'];?></p>
                         <dd> <a href=""> >> <?=$category['channel_name'];?></a></dd>
                  </div>
                  <?php endforeach; ?>                  
              </li>
            </ul>
  

• controller (Pages):

  public function index()
  {
  
  $data['category_chaneels'] = $this->pages_model->get_channels_by_categ_tv();
  
  $this->template->page_view($data);
  }
  

I atached image 1 and image 2, i need result like image 2 not 1.

PS. One channel can have many categories.

Can you help me ? THX

Answer 1

In your view, try

<?php $cat_shown = ''; ?>
<div class="programe-tv_link">
    <?php foreach ($category_chaneels as $category): ?>    
        <?php
        if ($cat_shown != $category['category_name']) {
            echo '<p>' . $category['category_name'] . '</p>';
            $cat_shown = $category['category_name'];
        }
        ?>
        <dd><a href=""> >> <?=$category['channel_name'];?></a></dd>
    <?php endforeach; ?>
</div>