PHP电子表格在浏览器选项卡中显示空白

Question

我用过https://github.com/PHPOffice/phpspreadsheet这个包来下载 codeigniter 中的 csv 文件

当我尝试下载时，它在浏览器选项卡中显示空白并且没有显示下载选项

没有错误

尝试使用以下代码

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

   require 'vendor/autoload.php';
   use PhpOffice\PhpSpreadsheet\Spreadsheet;
   use PhpOffice\PhpSpreadsheet\Writer\Xlsx;

   class Reports extends Admin_Controller
   {
       public function download()
       {
             $spreadsheet = new Spreadsheet();
             $sheet = $spreadsheet->getActiveSheet();
             $sheet->setCellValue('A1', 'Hello World !');
             $writer = new Xlsx($spreadsheet);
             $writer->save('hello world.xlsx');
       }
   }

有人可以帮忙吗？？谢谢

Answer 1

希望对您有所帮助:

require 'vendor/autoload.php';
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Spreadsheet;

class Reports extends Admin_Controller
{

  public function index()
  {
    $spreadsheet = new Spreadsheet();
    $sheet = $spreadsheet->getActiveSheet();
    $sheet->setCellValue('A1', 'Hello World !');

    $spreadsheet->setActiveSheetIndex(0);

    $filename = 'hello world';

    header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
    header('Content-Disposition: attachment;filename="'.$filename.'.xlsx"');
    header('Cache-Control: max-age=0');

    $writer = IOFactory::createWriter($spreadsheet, 'Xlsx');

    $writer->save('php://output');
  }
}

对于 csv，只需将扩展名 .xlsx 更改为 .csv(区分大小写)