ทำให้เลขลำดับเรียงใน pagination ของ codeigniter

public function main(){
		$this->load->library('pagination');
		$page = $this->uri->segment(3);
		
		$param = new stdClass();
		if (!isset($page) || $page == '') {
			$page = 1;
		}
		$param->per_page = 30;
		$param->limit = ($page - 1) * $param->per_page;
		
		$paginate_url = site_url('warehouse/main');
		$data['total_result'] = $this->m_stock->count_stock ();
		$config['uri_segment'] = 3;
		$config['num_links'] = 3;
		$config['base_url'] = $paginate_url;
		$config['total_rows'] = $data['total_result'];
		$config['per_page'] = $param->per_page;
		$config['use_page_numbers'] = TRUE;
		$config['page_query_string'] = TRUE;
		$this->pagination->initialize($config);
		$data['pagination']   = $this->pagination->create_links();
		
		$data['item'] = $this->m_stock->get_item_code($param);
		$this->load->view('v_all_stocks', $data);
	}
	

<div style="width: 70%" align="right">
	<?php 
	       if(isset($pagination) && $pagination != ''){
	?>
	<div class="search_pagination"><?php echo $pagination; ?></div>
	 <?php }   ?>
</div>
?php 
	$i=1;
	foreach ($item as $item){
?>
	<tr>
		<td>
			<?php echo $i++; ?>
		</td>
	<td>
<?php } ?>

<?php $page = $this->uri->segment(3);?>

<?php 
	$i=0;
	if(!isset($page)){
	  $page=1; 
	   if(count($item)>0){
		foreach ($item as $item){
		     $i++;
?>
		<tr>
			<td>
				<?php echo(($page-1)*30)+$i; ?>
		      </td>
               </tr>
<?php } } ?>

$config['use_page_numbers'] = TRUE;