Постраничная навигация в php-native

public function mainmusic($page, $cstart, $perpage, $sorttype, $sortorder) {
    global $member_id, $is_logged;
    if($this->config['music_cache_time'] != 0 and $this->config['cache'] != 0) $cache = $this->getCache("mainmusic");
    if($cache['time'] and (($cache['time'] + ($this->config['music_cache_time'] * 60)) > time())) {
        $data = $cache['data'];
    }
    else {
        $data = array();
        $sorttype = $sorttype ? $sorttype : $this->config['sort_type'];
        $sortorder = (($sortorder == "ASC") or ($sortorder == "DESC")) ? $sortorder : $this->config['sort_order'];
        $page = ($page <= 0) ? 1 : $page;
        $perpage = $perpage ? intval($perpage) : $this->config['main'];
        $cstart = $cstart ? $cstart : 0;
        $cstart = ($page * $perpage) - $perpage;
        $sql = $this->db->query("SELECT * FROM ".PREFIX."_music ORDER BY ".$sorttype.' '.$sortorder." LIMIT ".$cstart.",".$perpage);
        $countdata = $this->db->super_query("SELECT COUNT(*) as count FROM " . PREFIX . "_music");
        $countall = $countdata['count'];
        $totalpages = ceil($countall / $perpage);
        while($row = $this->db->get_row($sql)) {
            $data[] = $row;
        }
        if($this->config['music_cache_time'] != 0 and $this->config['cache'] != 0) $this->setCache("mainmusic", $data);
    }
    foreach ($data as $num=>$music) {
        if($music['allow_rate']){
            $music['rate-val'] = ($music['rating']>0)?"+".$music['rating']:$music['rating'];
        }
        if(dle_strlen($music['name'], $this->dleconfig['charset']) > $this->config['titletrack'])
            $music['name'] = strip_tags(stripslashes(dle_substr($music['name'], 0, $this->config['titletrack'], $this->dleconfig['charset'])." ..."));
        else
            $music['name'] = strip_tags(stripslashes($music['name']));
        $music['userpage'] = $this->parseUrl('?subaction=userinfo&user='.$music['autor'], 'user/'.$music['autor']."/");
        $music['id'] = $music['id'];
        $music['server'] = $music['onserver'];
        $music['username'] = $music['autor'];
        $music['date'] = $this->formatDate($this->config['date_adjust'], $music['date']);
        $music['skin'] = $this->dleconfig['http_home_url'] . 'templates/' . $this->dleconfig['skin'];
        $category = $music['category'];
        $cat = $this->db->query("SELECT name, id, alt FROM " . PREFIX . "_music_category WHERE id='{$category}'");
        while ($catrow = $this->db->get_row($cat)) {
            $catid = $catrow['id'];
            $catname = $catrow['name'];
            $cataltname = $catrow['alt'];
        }
        if($catid and $this->config['category_enable'] != 0) {
            $music['catid'] = $this->parseUrl('?do=music&op=category&cat='.$catid, 'music/category/'.$catid);
            $music['catname'] = $catname;
        }
        $data[$num] = $music;
    }
    return $data;
}

<div class="base">
    <div class="heading"><h2><?=$title?></h2></div>
    <div class="maincont">
        <?php foreach ($music_data as $music){ ?>
        <span id="playlist" url="<?=$music['server']?>" class="strack">
            <table border="0" cellpadding="0" cellspacing="0" width="100%">
                <tbody>
                    <tr>
                        <td>
                            <div class="item">
                                <div class="btn play" id="<?=$music['id']?>" onclick="zpPlayerLoad('<?=$music['server']?>', '<?=$music['name']?>', this.id);"></div>
                                <div class="title"><?=$music['name']?></div>
                            </div>
                        </td>
                        <td style="width:80px; padding-top:7px;">
                            <div class="music-orating" id="orating-<?=$music['id']?>">
                                <a href="#" class="orating_m" onclick="rating_music(<?=$music['id']?>,0);return false;"></a>
                                <a href="#" class="orating_res" onclick="stats_music(<?=$music['id']?>,1,this);return false;"><?=$music['rate-val']?></a>
                                <a href="#" class="orating_p" onclick="rating_music(<?=$music['id']?>,1);return false;"></a>
                            </div>
                        </td>
                        <td style="width:16px; padding:10px 5px;">
                            <a href="<?=$music['download']?>" class="tipsy-top" title="Скачать"><img src="<?=$music['skin']?>/music/img/mp1.png"></a>
                        </td>
                        <td style="width:160px;padding-top:1px;">
                            <div class="track-info">
                                <span>Добавил:</span> <b><a onclick="showUserHint('<?=$music['username']?>', this); return false;" href="<?=$music['userpage']?>"><?=$music['username']?></a></b><br>
                                <span>Добавлен:</span> <?=$music['date']?>
                                <?=$music['category']?>
                            </div>
                        </td>
                    </tr>
                </tbody>
            </table>
        </span>
        <?php } ?>
        <div class="clr"></div>
    </div>
</div>