php+mysql 實現分頁

第一，我們先創建一個表，用來存放數據的

本人實現的是用原生php+mysql實現。都混在一起

 

<?php
header('content-type:text/html;charset=utf-8');
	include('./sqldb.php');
	$sql="select * from test order by id desc";
	$result=mysql_query($sql);
	$num=mysql_num_rows($result);                	//頁總數
	$pageSize=5;  									//頁尺寸
	$pageCount=ceil($num/$pageSize);				//總頁數
	$pageNo=isset($_GET['page'])?$_GET['page']:1; 	//頁碼
	$pageNext=$pageNo+1;							//下一頁
	$pagePrev=$pageNo-1;							//上一頁
	
	//判斷頁碼越界
	if($pageNext>$pageCount)  $pageNext=$pageCount;
	if($pagePrev<1) 		  $pagePrev=1;
	if($pageNo>$pageCount)    $pageNo=$pageCount;
	if($pageNo<1)			  $pageNo=1;

	$offset=($pageNo-1)*$pageSize;       			//偏移量  
	mysql_data_seek($result, $offset);				//將結果指針移至offset處
?>

<style type="text/css">
	tr{background-color:#ffffff; font-size:12px;}
	td{text-align:center;height:30px;}

</style>
<table width="100%;" bgcolor="#333666" cellspacing="1">
	<tr>
		<td>ID</td>
		<td>姓名</td>
		<td>權限</td>
	</tr>
	<tr>
	<?php
    
    for ($i=0; $i <$pageSize ; $i++):
		$row=mysql_fetch_assoc($result);
		 if ($row) :
?>
		<td><?php echo $row['id']?></td>
		<td><?php echo $row['name']?></td>
		<td>
				<?php

				switch ($row['flag']) {
				case '1':
					echo "老師";
					break;
				case '2':
					echo "教授";
					break;
				
				default:
					echo "學生";
					break;
			}


		?>
</td>
	</tr>

	<?php
		endif;
	endfor;
	?>
	<tr>
		<td colspan="3">
			共<?php echo $num ?>條
			共<?php echo $pageCount ?> 頁
			每頁 <?php echo $pageSize ?>條
			<a href="Page.class.php?page=1">首頁</a>
			<a href="Page.class.php?page=<?php echo $pagePrev ?> ">第一頁</a>
			<a href="Page.class.php?page=<?php echo $pageNext?>">下一頁</a>
			<a href="Page.class.php?page=<?php echo $pageCount?>">最后一頁</a>

		</td>
	</tr>

</table>