Codeigniter运用PHPExcel导出Excel文件

发布时间：2023-07-21 09:03:50 所属栏目：PHP教程来源：

导读：Codeigniter利运用PHPExcel导出Excel文件

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

Codeigniter利运用PHPExcel导出Excel文件

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

3. 安装完毕,写一个导出excel的控制器(Controller),代码如下:

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');
}

}
方法二,代码如下:

Excel Plugin
The following plugin will generate a tab-delimited file, and feed it to the client as an Excel file.

$this->load->plugin('to_excel');
$this->db->use_table('tablename');
$this->db->select('field1', 'field2');
// run joins, order by, where, or anything else here
$query = $this->db->get();
to_excel($query, ['filename']); // filename is optional, without it, the plugin will default to 'exceloutput'

So you could run:

to_excel($query, 'myfile'); // outputs myfile.xls
to_excel($query); // outputs exceloutput.xls
// you could also use a model here
to_excel($this->model_name->functioncall());

/system/plugins/to_excel_pi.php

<?php if (!defined('BASEPATH')) exit('No direct script access allowed');

/*
* Excel library for Code Igniter applications
* Author: Derek Allard, Dark Horse Consulting, www.darkhorse.to, April 2006
*/

function to_excel($query, $filename='exceloutput')
{
$headers = ''; // just creating the var for field headers to append to below
$data = ''; // just creating the var for field data to append to below

$obj =& get_instance();

$fields = $query->field_data();
if ($query->num_rows() == 0) {
echo '<p>The table appears to have no data.</p>';
} else {
foreach ($fields as $field) {
$headers .= $field->name . "t";
}

foreach ($query->result() as $row) {
$line = '';
foreach($row as $value) {
if ((!isset($value)) OR ($value == "")) {
$value = "t";
} else {
$value = str_replace('"', '""', $value);
$value = '"' . $value . '"' . "t";
}
$line .= $value;
}
$data .= trim($line)."n";
}

$data = str_replace("r","",$data);

header("Content-type: application/x-msdownload");
header("Content-Disposition: attachment; filename=$filename.xls");
echo "$headersn$data";
}
}
?>

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