我们用最简单的方法直接用php+mysql来实现了,代码如下:
<?php
include('db/db.php'); //包含连库类
$db = new db();
$result = mysql_query('select * from market_sig into outfile "d:product3.xls";');
var_dump($result);
?>
上面是我们的原生php结合了mysql outfile文件导出方法,这种方法有个问题就是不能实现下载功能,只在生成在服务器上.
下面方法更全面:下载PHPExcel：http://phpexcel.codeplex.com
先来看看代码,代码如下:
<?php
class Table_export extends CI_Controller {
function __construct()
{
parent::__construct();
// Here you should add some sort of user validation
// to prevent strangers from pulling your table data
}
function index($table_name)
{
$this->load->database();
$query = $this->db->query("select * from `$table_name` WHERE del= 1");
// $query = mb_convert_encoding("gb2312", "UTF-8", $query);
if(!$query)
return false;
// Starting the PHPExcel library
$this->load->library('PHPExcel');
$this->load->library('PHPExcel/IOFactory');
$objPHPExcel = new PHPExcel();
$objPHPExcel->getProperties()->setTitle("export")->setDescription("none");
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue('A1', iconv('gbk', 'utf-8', '中文Hello'))
->setCellValue('B2', 'world!')
->setCellValue('C1', 'Hello');
// Field names in the first row
$fields = $query->list_fields();
$col = 0;
foreach ($fields as $field)
{
$objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, 1, $field);
$col++;
}
// Fetching the table data
$row = 2;
foreach($query->result() as $data)
{
$col = 0;
foreach ($fields as $field)
{
$objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $data->$field);
$col++;
}
$row++;
}
$objPHPExcel->setActiveSheetIndex(0);
$objWriter = IOFactory::createWriter($objPHPExcel, 'Excel5');
//发送标题强制用户下载文件
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="Products_'.date('dMy').'.xls"');
header('Cache-Control: max-age=0');
$objWriter->save('php://output');
}
}
?>
看看配置方法吧.
1) 解压压缩包里的Classes文件夹中的内容到
applicationlibraries目录下,目录结构如下:
-- applicationlibrariesPHPExcel.php
-- applicationlibrariesPHPExcel(文件夹)
2) 修改applicationlibrariesPHPExcelIOFactory.php 文件
-- 将其类名从PHPExcel_IOFactory改为IOFactory,遵从CI类命名规则.
-- 将其构造函数改为public.
还有很多方法像这种方法多喜欢用,因为phpexcel这个插件很实用,对excel表格操作方便.
