zf框架db类的分页示例分享

zf框架的分页示例

代码如下:

<?php

isset($_GET['page']) ? $page = $_GET['page'] : $page = 1;

//引入Loader类(自动加载类)

require_once("Zend/Loader.php");

//使用Loader类引入一个Db类

Zend_Loader::loadClass("Zend_Db");

//引入Zend_Db的状态器

Zend_Loader::loadClass("Zend_Db_Statement_Pdo");

//配置数据库连接信息

$Config = array('host' => '127.0.0.1' ,

'username' => 'root' ,

'password' => '111' ,

'dbname' => 'test',

'profiler' => "true"

);

//告诉Zend_Db类所操作的数据库和数据库配置信息

$Db = Zend_Db::factory('PDO_Mysql' , $Config);

//执行编码语句

$Db -> query("set names utf8");

//-----------------------------------------------

//使用fetchOne()方法得出表的总条数

$Total = $Db -> fetchOne("select count(*) from gongsi");

//定义每页显示条数

$B = 50;

//得出总页数

$A = ceil($Total/$B);

//-----接下来为一系列的查询表、取结果集、分页等操作

$Select = $Db ->select();

$Select -> from('sanguo',array('s_sheng as 省份','sum(s_gongzi) as 总工资','min(s_gongzi) as 最低工资','max(s_gongzi) as 最高工资','avg(s_gongzi) as 平均工资'));

// $Select -> Where('s_gongzi>=3000');

// $Select -> Where("s_sheng='河北'");

// $Select -> order('s_sheng asc');

// $Select -> order('s_gongzi desc');

$Select -> group('s_sheng'); //分组

//$Select -> having('最高工资>10000'); //附加条件

$Select -> order('最高工资 desc'); //排序

$Select -> limit(0,0); //截取

$Select -> limitPage($page, $B); //分页

/*SQL语句相当于：

select s_sheng as 省份,sum(s_gongzi) as 最高工资 from sanguo group by s_sheng having 最高工资>10000 order by 最高工资 desc limit 0,10;

*/

$Result = $Db->fetchAll($Select);

echo "<table align='center' width='960' >";

echo "<tr><th>省份</th><th>总工资</th><th>最低工资</th><th>最高工资</th><th>平均工资</th></tr>";

foreach ($Result as $key => $value)

{

echo "<tr>";

foreach ($value as $key2 => $value2)

{

echo "<td>" . $value2 . "</td>";

}

echo "</tr>";

}

echo "<tr>";

echo "<td colspan='5'>";

echo "<a href=?page=1>首页</a> ";

if ($page>1)

{

echo "<a href=?page=". ($page-1) .">上页</a> ";

}

for ($i=1; $i <=15 ; $i++)

{

echo "<a href=?page=$i>".$i."</a> ";

}

if ($page<$Total)

{

echo "<a href=?page=". ($page+1) .">下页</a> ";

}

echo "<a href=?page=" . $A .">末页</a>";

echo "</td>";

echo "</tr>";

echo "</table>";

?>