Codeigniter利用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();
-
-
-
- }
-
- function index($table_name)
- {
- $query = $this->db->get($table_name);
-
- if(!$query)
- return false;
-
-
- $this->load->library('PHPExcel');
- $this->load->library('PHPExcel/IOFactory');
-
- $objPHPExcel = new PHPExcel();
- $objPHPExcel->getProperties()->setTitle("export")->setDescription("none");
-
- $objPHPExcel->setActiveSheetIndex(0);
-
-
- $fields = $query->list_fields();
- $col = 0;
- foreach ($fields as $field)
- {
- $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, 1, $field);
- $col++;
- }
-
-
- $row = 2;
- foreach($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');
-
-
- 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');
-
- $query = $this->db->get();
- to_excel($query, ['filename']);
-
- So you could run:
-
- to_excel($query, 'myfile');
- to_excel($query);
-
- to_excel($this->model_name->functioncall());
-
- /system/plugins/to_excel_pi.php
-
- <?php if (!defined('BASEPATH')) exit('No direct script access allowed');
-
-
-
-
-
-
- function to_excel($query, $filename='exceloutput')
- {
- $headers = '';
- $data = '';
-
- $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";
- }
- }
- ?>