PHPExcel 是用来操作Office Excel 文档的一个PHP类库,它基于微软的OpenXML标准和PHP语言。可以使用它来读取、写入不同格式的电子表格。而Codeigniter是一个功能强大的PHP框架。二者结合就能起到非常棒的效果啦!
1. 准备工作
下载PHPExcel:http://phpexcel.codeplex.com
这是个强大的Excel库,这里只演示导出Excel文件的功能,其中的大部分功能可能都用不着。
2. 安装PHPExcel到Codeigniter
1) 解压压缩包里的Classes文件夹中的内容到application\libraries\目录下,目录结构如下:
-- application\libraries\PHPExcel.php
-- application\libraries\PHPExcel (文件夹)
2)修改application\libraries\PHPExcel\IOFactory.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
3. 安装完毕,写一个导出excel的控制器(Controller)
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)
{
$query = $this->db->get($table_name);
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);
// 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');
// Sending headers to force the user to download the file
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');
}
}
4. 测试
加入数据库有表名为products,此时可以访问http://www.yoursite.com/table_export/index/products 导出Excel文件了。
参考:http://www.dannyherran.com/2011/03/exporting-your-mysql-table-data-with-phpexcel-codeigniter/