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php 结果集的分页实现代码

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Release: 2016-06-13 12:24:36
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复制代码 代码如下:


@mysql_connect("localhost", "root","1981427") //连接数据库服务器
or die("数据库服务器连接失败");
@mysql_select_db("test") //选择数据库mydb
or die("数据库不存在或不可用");
$query = @mysql_query("select * from tablename1") //执行用于计算页数的SQL语句
or die("SQL语句执行失败");
$pagesize = 5; //设置每页记录数
$sum = mysql_numrows($query); //计算总记录数
if($sum % $pagesize == 0) //计算总页数
$total = (int)($sum/$pagesize);
else
$total = (int)($sum/$pagesize) + 1;
if (isset($_GET['page'])) //获得页码
{
$p = (int)$_GET['page'];
}
else
{
$p = 1;
}
$start = $pagesize * ($p - 1); //计算起始记录
//执行查询当前页记录的SQL语句
$query = @mysql_query("select * from tablename1 limit $start, $pagesize")
or die("SQL语句执行失败");
echo "

"; //输出表头
//通过循环的方式输出从第0行到最大的一行的所有记录
while($row = mysql_fetch_array($query))
{
$serial_no = $row['id']; //输出第$i行的serial_no列
$name = $row['username']; //输出第$i行的name列
$salary = $row['password']; //输出第$i行的salary列
echo "";
echo "";
echo "";
echo "";
echo "";
}
echo "
$serial_no$name$salary
"; //输出表尾
if($p > 1) //当前页不是第一页时,输出上一页的链接
{
$prev = $p - 1;
echo "上一页 ";
}
if($p {
$next = $p + 1;
echo "下一页";
}
?>
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