分页详解 从此分页无忧(PHP+mysql)
author:一佰互联 2019-05-01 click:164
本人所发代码全部为本人原创,并且应用在多个项目中. 自己经常用php+mysql分页代码
复制代码 代码如下:
<?php
$perpagenum = 10;//定义每页显示几条
$total = mysql_fetch_array(mysql_query("select count(*) from a"));//查询数据库中一共有多少条数据
$Total = $total[0]; //
$Totalpage = ceil($Total/$perpagenum);//上舍,取整
if(!isset($_GET["page"])||!intval($_GET["page"])||$_GET["page"]>$Totalpage)//page可能的四种状态
{
$page=1;
}
else
{
$page=$_GET["page"];//如果不满足以上四种情况,则page的值为$_GET["page"]
}
$startnum = ($page-1)*$perpagenum;//开始条数
$sql = "select * from a order by id limit $startnum,$perpagenum";//查询出所需要的条数
echo $sql."
";
$rs = mysql_query($sql);
$contents = mysql_fetch_array($rs);
if($total)如果$total不为空则执行以下语句
{
do
{
$id = $contents["id"];
$name = $contents["name"];
?>
<table border="0" align="center">
<tr>
<td>id:
<?php echo $id;?>
</td>
</tr>
<tr>
<td>name:
<?php echo $name;?>
</td>
</tr>
</table>
<?php
}
while($contents = mysql_fetch_array($rs));//do....while
$per = $page - 1;//上一页
$next = $page + 1;//下一页
echo "<center>共有".$Total."条记录,每页".$perpagenum."条,共".$Totalpage."页 ";
if($page != 1)
{
echo "<a href="".$_SERVER["PHP_SELF"]."">首页</a>";
echo "<a href="".$_SERVER["PHP_SELF"]."?page=".$per.""> 上一页</a>";
}
if($page != $Totalpage)
{
echo "<a href="".$_SERVER["PHP_SELF"]."?page=".$next.""> 下一页</a>";
echo "<a href="".$_SERVER["PHP_SELF"]."?page=".$Totalpage.""> 尾页</a></center>";
}
}
else如果$total为空则输出No message
{
echo "<center>No message</center>";
}
?>