用ODBC的分页显示
2024-05-04 23:00:49
供稿：网友
，欢迎访问网页设计爱好者web开发。<?php
$pagesize = 3;//设置每页显示数目
//计算总记录数
$rs_num = "select count(*) as id from table";
$rs_num = odbc_exec($conn_id,$rs_num);
$rs_num = odbc_result($rs_num,"id");
//计算总页数
$pagecount = $rs_num / $pagesize;
$pagecount1 = intval($pagecount);//将总页数取整
$compare = $pagecount - $pagecount1;
switch ($compare){
case "0":
$pagecount = $pagecount1;//总页数
break;
default :
$pagecount1++;
$pagecount = $pagecount1;//总页数
break;
};
if ($pagecount == 0)$pagecount++;
$fpages = $pages-1;
$bpages = $pages+1;
?>
<table>
<tr>
<td>
共<?php echo $pagecount ?>页
<?php if($pages != 1)echo "<a href=show.php3?pages=1>";?>首页<?php if($pages != 1)echo "</a>"; ?>
<?php if($pages != 1)echo "<a href=show.php3?pages=".$fpages.">"; ?>前页<?php if($pages != 1)echo "</a>"; ?>
<?php if($pages != $pagecount)echo "<a href=show.php3?pages=".$bpages.">"; ?>后页<?php if($pages != $pagecount)echo "</a>"; ?> <?php if($pages != $pagecount)echo "<a href=show.php3?pages=".$pagecount.">"; ?>
尾页<?php if($pages != $pagecount)echo "</a>"; ?>
</td>
</tr></table>
<?php
$firstshow = ($pages-1)*$pagesize+1;//确定每页的第一条记录
//找出第一条记录的记录号
$query_string = "select * from table order by id desc";
$query_string = odbc_exec($conn_id,$query_string);
odbc_fetch_into($query_string,$firstshow,&$idarea);
$idsql = $idarea[0];
//定位查找
if ($pages == $pagecount) {
$rs = "select * from table where id <= '".$idsql."' order by id desc";
}else{
$rs = "select top ".$pagesize." * from table where id <= '".$idsql."' order by id desc";
};
$rs = odbc_exec($conn_id,$rs);
//显示记录
while(odbc_fetch_row($rs)){
};
?>
<?php
//关闭连接
odbc_close($conn_id);
?>
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