php与mysql实现分页的示例

//连接数据库:
$link = mysqli_connect("localhost","root","123456","test") or die ("错误：连接数据库失败");   //一次为：服务器，用户名，密码，库名
mysqli_query($link,"set names 'utf8'"); //输出的编码方式，这句一定要有。

//连接表:
$sql = "SELECT * FROM wordspace WHERE sa_id IS NOT NULL";   //mysql查询语句
$sqlcount = mysqli_query($link,$sql) or die ("查询失败");  //将其输出.
$info = mysqli_fetch_ array($sqlcount);
while($info){
	$result[ ] = $info;  //传值给一个数组
}

mysqli_free_result($info);  //查询完后要释放该表
mysqli_close($link);  //关闭数据库

<table border="1">
	<tr>
		<td>id</td>
		<td>Price</td>
		<td>customer</td>
	</tr>
<!---用php将数据显示-->
	<?php foreach($result as $val)   {?>
	<tr>
		<td><?php echo $val['id'];?></td>
		<td><?php echo $val[Price'];?></td>
		<td><?php echo $val['customer'];?></td>
	</tr>
	<?php  }  ?>
</table>

<!--显示首页和上一页的条件-->
<?php if($page > 1)  {?>        
	<a href="?page=1">首页</a>
	<a href="?page=<?php echo $prevpage;">上一页</a>
<?php  }  ?>

<!--显示下一页和尾页的条件-->
<?php if($page < $ numpages)  {?>
	<a href="?page=<?php echo $nextpage;?">下一页</a>
	<a href="?page=<?php echo $numpages;?>尾页
<?php  }  ?>

//获取总记录数:
$sqls  = "SELECT COUNT(*)  as totalFROM wordspace where sa_id  IS NOT NULL";
$sqlcount = mysqli_query($link,$sqls) od die("查询失败");
$pagecount  = mysqli_fetch_array($sqlcount);
$pagecount = $pagecount['total'];
mysqli_free_result($sqlcount);   //查询完记得释放空间
//获取页数,判断是否符合要求
$page = intval($_GET['page']);
if($page <=0) {$page= 1;}
elseif($page > $pagecount){ $page = $pagecount; }

//定义每页显示的页数：
$pageshow = 5;
$pagesize = ($page-1) * $pageshow;
//计算总页数:
$numpages = ceil($pagecount/$pageshow);   //向上取整；

//连接要显示的数据库
$sql = "SELECT * FROM wordcpace where IS NOT NULL limit $pagesize,$pageshow";
$sqlinfo = mysqli_query($sql);
$pide = mysqli_fetch_array($sqlinfo)or die("分页查询失败");
while($pide){
	$result[ ] = $pide;
}

$prevpage = $page - 1;

$nextpage = $page + 1;

mysqli_free_result($sqlinfo);
musqli_close($link);  //最后要关闭数据库