welcome.php

<?php
public function search()
{
  $searchterm = $this->search_model->searchterm_handler($this->input->get_post('searchterm', TRUE));
  $limit = ($this->uri->segment(3) > 0)?$this->uri->segment(3):0;

  $config['base_url'] = base_url() . 'welcome/search';
  $config['total_rows'] = $this->search_model->search_record_count($searchterm);
  $config['per_page'] = 20;
  $config['uri_segment'] = 3;
  $choice = $config['total_rows']/$config['per_page'];
  $config['num_links'] = round($choice);		
  $this->pagination->initialize($config);

  $data['results'] = $this->search_model->search($searchterm,$limit);
  $data['links'] = $this->pagination->create_links();
  $data['searchterm'] = $searchterm;
  $this->load->view('search',$data);

}