php - Wrong calculation codeigniter pagination -

i have made codeigniter pagination show product in image. wrong on second page, not sustainable or continuously.

i set per_page is: 6, total data 11.

in page 1 result ok, show image id form 1 - 6,but when click second page start 3 - 8.

this model

public function record_count() {   return $this->db->count_all('mytable'); }  public function fetch_jenislogam($limit, $start) {   $start--;   if($start<0)   {    $start=0;   }    $this->db->limit($limit, $start);    $query = $this->db->get("tb_jenislogam");    return $query->result_array(); } 

this view

<?php foreach($results $data) { ?> <div class="col-lg-3 text-center"> <a href="<?php echo base_url();?>item/subitem/<?php echo $data->id; ?>"> <!-- direct product subitem --> <img class="img-responsive"  src='<?php $img = $data->pics; if ($img) { echo base_url().'uploads/origin/'.$data->pics; } else { echo base_url().'uploads/origin/def-img.png'; } ?>'></a> <br> </div> <div> <?php  echo $data->id;?></div> <?php } ?> 

and controller like.

 public function listitem()   {    $config = array();    $config['base_url']  = base_url().'item/listitem';    $config['total_rows'] = $this->item_m->record_count();     $config['per_page'] = 6;    $config['uri_segment']   = 3;    $config['num_links'] = 2;    $config['use_page_numbers'] = true;    $config['cur_tag_open'] = '<a class="current">';    $config['cur_tag_close'] = '</a>';    $config['next_link'] = '>';    $config['prev_link'] = '<';     $this->pagination->initialize($config);    $page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;    $data['links'] = $this->pagination->create_links();    $data['uri'] = $this->uri->segment(3);    $data['results'] = $this->item_m->fetch_jenislogam($config['per_page'],  $page);      $this->load->view('user_header');    $this->load->view('user/usr_item_view', $data);    $this->load->view('user_footer');  } 

you need change second parameter in controller, means $page variable value:

$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0; $pagelimit = ($page*$config['per_page']); //add line 

after pass $pagelimit variable in

$data['results'] = $this->item_m->fetch_jenislogam($config['per_page'],  $pagelimit); 

reason: limit function's second parameter offset. , in case, set 1,2,3 ...