本文介绍了php spreadsheet_excel_writer与如何生成excel文件。
第一步,安装spreadsheet_excel_writer 由于这包使用ole包,您可能需要安装它
执行以下命令来执行更新: 更新pear.php.net ole - 0.5 spreadsheet_excel_writer - 0.9.1
看一个实例,myfile.xls是文件名(包括路径),工作簿包含一个具有学生名单表
<?php
require_once 'spreadsheet/excel/writer.php';
// creating workbook
$workbook = new spreadsheet_excel_writer('myfile.xls');
// adding worksheet
$worksheet =& $workbook->addworksheet('students');
// data input
$worksheet->write(0, 0, 'name');
$worksheet->write(0, 1, 'grade');
$worksheet->write(1, 0, 'ivancho');
$worksheet->write(1, 1, 7);
$worksheet->write(2, 0, 'mariika');
$worksheet->write(2, 1, 7);
$worksheet->write(3, 0, 'stoyancho');
$worksheet->write(3, 1, 8);
// saving file
$workbook->close();
?>
下面来看一款把数据导出给用户保存吧。
<?php
require_once 'spreadsheet/excel/writer.php';
// creating workbook
$workbook = new spreadsheet_excel_writer();
// sending headers to browser
$workbook->send('students.xls');
// adding worksheet
$worksheet =& $workbook->addworksheet('students');
// data input
$worksheet->write(0, 0, 'name');
$worksheet->write(0, 1, 'grade');
$worksheet->write(1, 0, 'ivancho');
$worksheet->write(1, 1, 7);
$worksheet->write(2, 0, 'mariika');
$worksheet->write(2, 1, 7);
$worksheet->write(3, 0, 'stoyancho');
$worksheet->write(3, 1, 8);
// sending the file
$workbook->close();
本文章主要是讲利用spreadsheet_excel_reader读取 excel文件,在你网站数据量超大的时候或有很多会员数据时这个是有必要把当日数据导入到excel备份的,为此我们提供一款读取excel文件实例。
下网站下载一个spreadsheet_excel_reader类。
*/
代码如下 | 复制代码 |
$reader=new spreadsheet_excel_reader(); //如果以以表格形式输出我们就利用遍历 foreach ($reader->boundsheets as $k=>$sheet) //表中的数据存储在表变量.每一个表是一个二维数组。以下是如何打印所有数据 foreach($reader->sheets as $k=>$data) foreach($data['cells'] as $row) |
本文章提供一款php 连接 access数据库与修改删除增加数据实例哦,首页我们来告诉你利用php 连接 access数据库然后再增加,修改,编辑,显示删除以及数据的分页效果源码。
代码如下 | 复制代码 |
$conn = new com("adodb.connection"); $rs=new com("adodb.recordset"); |
源码下载
http://down.111cn.net/down/code/php/cmswenzhang/2010/1028/21478.html
本文章收集了四款mysql 分页存储过程实例代码,有高效的分页存储过程以及入门级的和通用的存储过程分页代码,如果你正在学mysql分页存储过程就进来看看吧。mysql测试版本:5.0.41-community-nt
/*****************************************************
mysql分页存储过程
吴剑 2009-07-02
*****************************************************/
drop procedure if exists pr_pager;
create procedure pr_pager(
in p_table_name varchar(1024), /*表名*/
in p_fields varchar(1024), /*查询字段*/
in p_page_size int, /*每页记录数*/
in p_page_now int, /*当前页*/
in p_order_string varchar(128), /*排序条件(包含order关键字,可为空)*/
in p_where_string varchar(1024), /*where条件(包含where关键字,可为空)*/
out p_out_rows int /*输出记录总数*/
)
not deterministic
sql security definer
comment '分页存储过程'
begin
/*定义变量*/
declare m_begin_row int default 0;
declare m_limit_string char(64);
/*构造语句*/
set m_begin_row = (p_page_now - 1) * p_page_size;
set m_limit_string = concat(' limit ', m_begin_row, ', ', p_page_size);
set @count_string = concat('select count(*) into @rows_total from ', p_table_name, ' ', p_where_string);
set @main_string = concat('select ', p_fields, ' from ', p_table_name, ' ', p_where_string, ' ', p_order_string, m_limit_string);
/*预处理*/
prepare count_stmt from @count_string;
execute count_stmt;
deallocate prepare count_stmt;
set p_out_rows = @rows_total;
prepare main_stmt from @main_string;
execute main_stmt;
deallocate prepare main_stmt;
end
一款高效的存储过程分页代码
存储过程分页的基本原理:我们先对查找到的记录集(支持输入查找条件_whereclause和排列条件_orderby)的key字段临时存放到临时表,然后构建真正的记录集输出。
create procedure `mysqltestuser_select_pageable`(
_whereclause varchar(2000), -- 查找条件
_orderby varchar(2000), -- 排序条件
_pagesize int , -- 每页记录数
_pageindex int , -- 当前页码
_docount bit -- 标志:统计数据/输出数据
)
not deterministic
sql security definer
comment ' '
begin
-- 定义key字段临时表
drop table if exists _temptable_keyid; -- 删除临时表,如果存在
create temporary table _temptable_keyid
(
userid int
)type=heap;
-- 构建动态的sql,输出关键字key的id集合
-- 查找条件
set @sql = 'select userid from mysqltestuser ';
if (_whereclause is not null) and (_whereclause <> ' ') then
set @sql= concat(@sql, ' where ' ,_whereclause);
end if;
if (_orderby is not null) and (_orderby <> ' ') then
set @sql= concat( @sql , ' order by ' , _orderby);
end if;
-- 准备id记录插入到临时表
set @sql=concat( 'insert into _temptable_keyid(userid) ', @sql);
prepare stmt from @sql;
execute stmt ;
deallocate prepare stmt;
-- key的id集合 [end]
-- 下面是输出
if (_docount=1) then -- 统计
begin
select count(*) as recordcount from _temptable_keyid;
end;
else -- 输出记录集
begin
-- 计算记录的起点位置
set @startpoint = ifnull((_pageindex-1)*_pagesize,0);
set @sql= ' select a.*
from mysqltestuser a
inner join _temptable_keyid b
on a.userid =b.userid ';
set @sql=concat(@sql, " limit ",@startpoint, " , ",_pagesize);
prepare stmt from @sql;
execute stmt ;
deallocate prepare stmt;
end;
end if;
drop table _temptable_keyid;
end;
下面是mysqltestuser表的ddl:
create table `mysqltestuser` (
`userid` int(11) not null auto_increment,
`name` varchar(50) default null,
`chinesename` varchar(50) default null,
`registerdatetime` datetime default null,
`jf` decimal(20,2) default null,
`description` longtext,
primary key (`userid`)
) engine=innodb default charset=gb2312;
插入些数据:
insert into `mysqltestuser` (`userid`, `name`, `chinesename`, `registerdatetime`, `jf`, `description`) values
(1, 'xuu1 ', 'www.aimeige.com.cn ', '2007-03-29 12:54:41 ',1.5, 'description1 '),
(2, 'xuu2 ', 'www.111cn.net ', '2007-03-29 12:54:41 ',2.5, 'description2 '),
存储过程调用测试:
-- 方法原型 `mysqltestuser_select_pageable`(条件,排列顺序,每页记录数,第几页,是否统计数据)
-- call `mysqltestuser_select_pageable`(_whereclause ,_orderby ,_pagesize ,_pageindex , _docount)
-- 统计数据
call `mysqltestuser_select_pageable`(null, null, null, null, 1)
-- 输出数据,没条件限制,10条记录/页,第一页
call `mysqltestuser_select_pageable`(null, null, 10, 1,0)
-- 输出数据,条件限制,排列, 10条记录/页,第一页
call `mysqltestuser_select_pageable`( 'chinesename like ' '%飞3% ' ' ', 'userid asc ', 10, 1, 0)
一款mysql .net的方法
mysql + asp教程.net来写网站,既然mysql已经支持存储过程了,那么像分页这么常用的东西,当然要用存储过程啦!
不过在网上找了一些,发现都有一个特点——就是不能传出总记录数,干脆自己研究吧。终于,算是搞出来了,效率可能不是很好,但是我也觉得不错了。贴代码吧直接:也算是对自己学习mysql的一个记录。
create procedure p_pagelist
(
m_pageno int ,
m_perpagecnt int ,
m_column varchar(1000) ,
m_table varchar(1000) ,
m_condition varchar(1000),
m_orderby varchar(200) ,
out m_totalpagecnt int
)
begin
set @pagecnt = 1; -- 总记录数
set @limitstart = (m_pageno - 1)*m_perpagecnt;
set @limitend = m_perpagecnt;
set @sqlcnt = concat('select count(1) into @pagecnt from ',m_table); -- 这条语句很关键,用来得到总数值
set @sql = concat('select ',m_column,' from ',m_table);
if m_condition is not null and m_condition <> '' then
set @sql = concat(@sql,' where ',m_condition);
set @sqlcnt = concat(@sqlcnt,' where ',m_condition);
end if;
if m_orderby is not null and m_orderby <> '' then
set @sql = concat(@sql,' order by ',m_orderby);
end if;
set @sql = concat(@sql, ' limit ', @limitstart, ',', @limitend);
prepare s_cnt from @sqlcnt;
execute s_cnt;
deallocate prepare s_cnt;
set m_totalpagecnt = @pagecnt;
prepare record from @sql;
execute record;
deallocate prepare record;
end
方法四
mysql的通用存储过程,本着共享的精神,为大家奉献这段mysql分页查询通用存储过程,假设所用数据库教程为guestbook:
use guestbook;
delimiter $$
drop procedure if exists prc_page_result $$
create procedure prc_page_result (
in currpage int,
in columns varchar(500),
in tablename varchar(500),
in scondition varchar(500),
in order_field varchar(100),
in asc_field int,
in primary_field varchar(100),
in pagesize int
)
begin
declare stemp varchar(1000);
declare ssql varchar(4000);
declare sorder varchar(1000);
if asc_field = 1 then
set sorder = concat( order by , order_field, desc );
set stemp = <(select min;
else
set sorder = concat( order by , order_field, asc );
set stemp = >(select max;
end if;
if currpage = 1 then
if scondition <> then
set ssql = concat(select , columns, from , tablename, where );
set ssql = concat(ssql, scondition, sorder, limit ?);
else
set ssql = concat(select , columns, from , tablename, sorder, limit ?);
end if;
else
if scondition <> then
set ssql = concat(select , columns, from , tablename);
set ssql = concat(ssql, where , scondition, and , primary_field, stemp);
set ssql = concat(ssql, (, primary_field, ), from (select );
set ssql = concat(ssql, , primary_field, from , tablename, sorder);
set ssql = concat(ssql, limit , (currpage-1)*pagesize, ) as tabtemp), sorder);
set ssql = concat(ssql, limit ?);
else
set ssql = concat(select , columns, from , tablename);
set ssql = concat(ssql, where , primary_field, stemp);
set ssql = concat(ssql, (, primary_field, ), from (select );
set ssql = concat(ssql, , primary_field, from , tablename, sorder);
set ssql = concat(ssql, limit , (currpage-1)*pagesize, ) as tabtemp), sorder);
set ssql = concat(ssql, limit ?);
end if;
end if;
set @ipagesize = pagesize;
set @squery = ssql;
prepare stmt from @squery;
execute stmt using @ipagesize;
end;
$$
delimiter;
可以存储为数据库脚本,然后用命令导入:
mysql -u root -p < pageresult.sql;
调用:call prc_page_result(1, "*", "tablename", "", "columnname", 1, "pkid", 25);
*/
?>
+-----------------------------------------------------------------------
| 文件概要:php连接mysql数据库
| 文件名称:mysql.class.php
| 创建时间:2010-9-7
+-----------------------------------------------------------------------
*/
代码如下 | 复制代码 |
class mysql { /*===================================================== /*==================================================== /*=================================================== /*=================================================== /*=================================================== /*=================================================== /*=================================================== /*=================================================== /*=================================================== //如果是普通查询语句,直接过滤一些特殊语法 //$notallow2 = "--|/*"; //完整的sql检查 //老版本的mysql并不支持union,常用的程序里也不使用union,但是一些黑客使用它,所以检查它 //发布版本的程序可能比较少包括--,#这样的注释,但是黑客经常使用它们 //这些函数不会被使用,但是黑客会用它来操作文件,down掉数据库 //老版本的mysql不支持子查询,我们的程序里可能也用得少,但是黑客可以使用它来查询数据库敏感信息 /*=================================================== /*=================================================== /*=================================================== //数据库连接函数 |