php翻页代码出错,请教高手。(只剩最后的27分了)
运行结果是只显示数据库内容的第一页,单击“下一页”仍然停留在第一页上。
<?phpphp?翻页 PHP 翻页
$pages=ceil($count/$list_num);
echo "<table width=780 border=0 cellspacing=0 cellpadding=0 align=center class='text'>
<tbody>
<tr> <td width='159'><font color='#ff0000'>目前共有".$count."条记录</font> </td>
<td width='205'>共".$pages."页</td>";
if($offset){
$preoffset=$offset-$list_num;
print "<td width='132'><a href="$PHP_SELF?offset=$preoffset">上一页</a></td>";}
else {
echo "<td width='132'>上一页</td>";
}
$newoffset=$offset+$list_num;
if(($pages!=0)&&(($newoffset/$list_num)!=$pages))
{
print("<td width='158'><a href="$PHP_SELF?offset=$newoffset">下一页</a></td>");
}
else{ echo "<td width='158'>下一页</td>";}
$pageno=($offset/$list_num)+1;
echo "<td width='112' class=text>第<input class=text type='text' size='4'value=".$pageno." readonly>页</td>
<td width='4'> </td> </tr> </table>";
?>
<?php
if ($_GET[offset]) {
$offset = $_GET[offset];
}
$count =100 ;
$list_num =5 ;
$pages=ceil($count/$list_num);
echo "<table width=780 border=0 cellspacing=0 cellpadding=0 align=center class='text'>
<tbody>
<tr> <td width='159'><font color='#ff0000'>目前共有".$count."条记录</font> </td>
<td width='205'>共".$pages."页</td>";
if($offset){
$preoffset=$offset-1;
print "<td width='132'><a href="$PHP_SELF?offset=$preoffset">上一页</a></td>";}
else {
echo "<td width='132'>上一页</td>";
}
$newoffset=$offset+1;//$list_num;
if(($pages!=0)&&(($newoffset/$list_num)!=$pages))
{
print("<td width='158'><a href="$PHP_SELF?offset=$newoffset">下一页</a></td>");
}
else{ echo "<td width='158'>下一页</td>";}
$pageno=$offset;
echo "<td width='112' class=text>第<input class=text type='text' size='4'value=".$pageno." readonly>页</td>
<td width='4'> </td> </tr> </table>";
?>
<?php
include 'mysqlconnect.php';
$limit1 = $offset*$count/$list_num ;
$limit2 = ($offset+1)*$count/$list_num;
$sql = "select * from mealtable order by mealuid desc limit $limit1,$limit2";
$query = mysql_query($sql);
var_dump($query);
while ($a = mysql_fetch_row($query)) {
print_r($a);
}
?>