在原有的基礎上更改的分頁模式

我這個系統是一個音訊網站，所有的音訊資料都是寫在一個欄位裡，如果有幾千條的話！不做分頁的話打開網站基本上是會卡死的。分享下前台與後台程式碼給大家，希望功能學習
後台程式碼//分頁開始<br>         $rs = M('Vod');<br>         $user = array();<br>         $user['q_islock'] = $_REQUEST['q_islock'];<br>         $selectType = $_REQUEST['q_selectType'];<br>         $wd = urldecode(trim($_REQUEST['wd']));<br>         $user['selectType'] = $selectType;<br>         $user['wd'] = $wd;<br>         $user['p'] = '';<br> <br>         if ($user['q_islock'] == 1) {<br>             $where['islock'] = array('eq', 1);<br>         }<br>         else if ($user['q_islock'] == 2) {<br>             $where['islock'] = array('eq', 0);<br>         }<br> <br>         if (!empty($selectType) &&!empty($wd)) {<br>             $where[$selectType] = array('like', '%' . $wd . '%');<br>         }<br>         $ida=$_GET['id'];<br>         $vod_url=$rs->where("vod_id=$ida")->getfield("vod_url");<br>         $count=(substr_count($vod_url,"$")-3)/2;<br>         $limit = C('url_num_admin');<br>         $totalpages = ceil($count / $limit);<br>         $currentpage = (!empty($_GET['p']) ? intval($_GET['p']) : 1);<br>         $currentpage = get_maxpage($currentpage, $totalpages);<br>         $pageurl = U('/read-id-'.$ida, $user, false, false)。         $user['p'] = $currentpage;<br>         $_SESSION['user_jumpurl'] = U('/read-id-'.$ida, $user). C('url_html_suffix');<br>         $page='共'. $計數。 . $totalpages . ')');<br>         $user['page'] = $page;<br>         $f['currentpage']=$currentpage;<br>         $sq['vod_id']=$ida;<br>         $vod_playlist=$rs->find($ida);<br>         $this->分配($f);<br>         $this->分配($user);<br>         //分頁結束<br>模板程式碼區塊$fj=($currentpage-1)*20                 <volist name="gxlcms_playlist" id="gxlcms"> <br> <if eq ts><br>         <fflist name="gxlcms['son']" id="gxlcmsson" order="asc" offset="$fj" length="20"><br> <br>                    <li> <time>更新時間：{$vod_addtime|date='Y-m-d H:i:s',###}</time><i> </i><a href="%7B%24gxlcmsson.playurl%7D">{$gxlcmsson.playname}</a> </li> <br>                     </fflist><br>                       <br>                 如果> </if></volist>