Search with Pagination in Codeingter

Step 1 : Created search_results.php in view
  <?php include ( public_header.php );?>
  <div class="container">
   <h1>Serach Results</h1>
   <table class="table">
    <thead>
     <tr>
      <td>Sr No.</td>
      <td>Article Title</td>
      <td>Published On</td>
     </tr>
    </thead>
    <tbody>
     <tr>
    <?php if(count($articles)):?>
     <?php $count=$this->uri->segment(4,0);?>
     <?php foreach($articles as $article ):?>
      <td><?= ++$count?></td>
      <td><?= $article->title?></td>
      <td><?= "Date" ?></td>
     </tr>
     <?php endforeach;?>

    <?php else: ?>
     <tr>
      <td colspan="3"> No Records Found.</td>
     </tr>
     <?php endif;?>
    </tbody>
   </table>
   <?= $this->pagination->create_links();?>
  </div>

  <?php include ( public_footer.php );?>

step 2 created function in controller

  public function search()
  {
   $this->load->library( form_validation );
   $this->form_validation->set_rules( query , Query , required );

   if(! $this->form_validation->run())
    $this->index();

   $query=$this->input->post( query );
   return redirect("user/search_results/$query");

   // $this->load->view( public/search_results ,compact( articles ));
  }

  public function search_results($query)
  {
   $this->load->helper( form );
   $this->load->model( articlesmodel , articles );
   $this->load->library( pagination );
   $config=[
      base_url   => base_url("user/search_results/$query"),
      per_page    => 5,
      total_row   => $this->articles->count_search_results($query),
      full_tag_open  => "<ul class= pagination >",
      full_tag_close => "</ul>",
      first_tag_opne  => "<li>",
      first_tag_close => "</li>",
      uri_segment   => 4,
     //  first_link   => "<li>"
     //  last_link    => "</li>"
      last_tag_opne  => "<li>",
      last_tag_close  => "</li>",
      next_tag_opne  => "<li>",
      next_tag_close  => "</li>",
      pre_tag_open   => "<li>",
      pre_tag_close  => "</li>",
      num_tag_open   =>  <li> ,
      num_tag_close  =>  </li> ,
      cur_tag_open   => "<li class= active ><a>",
      cur_tag_close  =>  </a></li> ,
   ];

   $this->pagination->initialize($config);
   $articles=$this->articles->search($query,$config[ per_page ],$this->uri->segment(4));
   $this->load->view( public/search_results ,compact( articles ));
  }

Step 3 :Created function in model

  public function search($query,$limit,$offset)
  {
   $q=$this->db->from( articles )
      ->like( title ,$query)
      ->limit($limit,$offset)
      ->get();
   return $q->result();
  }
  public function count_search_results($query)
  {
   $q=$this->db->from( articles )
     ->like( title ,$query)
     ->get();
   return $q->num_rows();
  }