Custom Library Pagination Codeigniter

//LIBRARY PAGINATION CODE IGNITER
//DEFAULT FOR BOOTSTRAP

<?php
class Pagination_library
{
    function paginate_anchor($url, $queryPaging, $total, $per_page) {
        $prevlabel = "&lsaquo; Prev";
        $nextlabel = "Next &rsaquo;";
        $out = '<div class="pagination">';
        $page=$queryPaging;
        $tpages=ceil($total/$per_page);
        $adjacents=$per_page;
        if($page==1) {
                $out.= "<span>$prevlabel</span>";
        } else if($page==2) {
                $out.= "<a href='".$url."page=".($page-1)."'>$prevlabel</a>";
        }else {
                $out.= "<a href='".$url."page=".($page-1)."'>$prevlabel</a>";

        }
        if($page>($adjacents+1)) {
                $out.= "<a href='".$url."page=1'>1</a>";
        }
        if($page>($adjacents+2)) {
                $out.= "...\n";
        }
        $pmin = ($page>$adjacents) ? ($page-$adjacents) : 1;
        $pmax = ($page<($tpages-$adjacents)) ? ($page+$adjacents) : $tpages;
        for($i=$pmin; $i<=$pmax; $i++) {
                if($i==$page) {
                        $out.= "<span>$i</span>";
                }else if($i==1) {
                        $out.= "<a href='".$url."page=$i'>$i</a>";
                }else {
                        $out.= "<a href='".$url."page=$i'>$i</a>";
                }
        }

        if($page<($tpages-$adjacents-1)) {
                $out.= "...\n";
        }
        if($page<($tpages-$adjacents)) {
                $out.= "<a href='".$url."page=$tpages'>$tpages</a>";
        }
        if($page<$tpages) {
                $out.= "<a href='".$url."page=".($page+1)."'>$nextlabel</a>";
        }else {
                $out.= "<span>$nextlabel</span>";
        }
        $out.= "</div>";
        if($total<$per_page)
        {
    return null;
    }else{
    return $out;
    }
    }


}

//HOW TO USE ?
//ON CONTROLLERS OR MODELS
$url=site_url('viewdata/').'?';
$page = isset($_GET['page']) ? mysql_real_escape_string($_GET['page']) : '1';
$limit=10;
$offset = ($page - 1) * $limit;
$sql=$this->db->query("SELECT * FROM TABLE limit $offset,$limit");
$sql2=$this->db->query("SELECT * FROM TABLE");
$datadb=$sql->result();
$totalrow=$sql2->num_rows();
$this->load->library('pagination_library');
$data['links']=$this->pagination_library->paginate_anchor($url,$page,$totalrow,$limit);
$data['results']=$datadb;


//CREATE VIEWS FOR DATA
foreach($isdata['results'] as $row)
{
    $row->field1.'<br>';
    $row->field2;
}
echo $isdata['links'];