CI框架里面PHPExcel的使用|导出数据到Excel文件

1. 准备开始……

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)

{

$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’);

}

}

?>

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

转自：令狐葱@Web前端开发