Question

这是我的代码：

 public function downloadexcel($requestId) {
    $this->loadModel('MaterialsRequest');
    $materialsRequests = $this->MaterialsRequest->find('all', array('conditions' => array('MaterialsRequest.request_id' => $requestId)));
    date_default_timezone_set('Europe/London');

    if (PHP_SAPI == 'cli')
        die('This example should only be run from a Web Browser');

    /** Include PHPExcel */
    //require_once dirname(__FILE__) . '/../Classes/PHPExcel.php';
    // Create new PHPExcel object
    $objPHPExcel = new PHPExcel();

    // Set document properties
    $objPHPExcel->getProperties()->setCreator("mez")
            ->setLastModifiedBy("mez")
            ->setTitle("Supply Template")
            ->setSubject("Supply Template")
            ->setDescription("Supply Template , please fill and upload.")
            ->setKeywords("office 2007 openxml php")
            ->setCategory("Supply");




    $objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(10);
    $objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(40);
    $objPHPExcel->getActiveSheet()->getColumnDimension('C')->setWidth(30);
    $objPHPExcel->getActiveSheet()->getColumnDimension('D')->setWidth(30);
    $objPHPExcel->getActiveSheet()->getStyle('A')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_LEFT);
    $objPHPExcel->getActiveSheet()->getStyle('B')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::VERTICAL_CENTER);
    $objPHPExcel->getActiveSheet()->getStyle('C')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::VERTICAL_CENTER);
    $objPHPExcel->getActiveSheet()->getStyle('D')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::VERTICAL_CENTER);

    // Add some data
    $objPHPExcel->setActiveSheetIndex(0)
            ->setCellValue('A1', 'Material ID')
            ->setCellValue('B1', 'Material Name')
            ->setCellValue('C1', 'Quantity')
            ->setCellValue('D1', 'Your offer');


    $index = 2;
    foreach ($materialsRequests as $oneMaterialsRequests) {

        $objPHPExcel->setActiveSheetIndex(0)
                ->setCellValue('A' . $index, $oneMaterialsRequests['MaterialsRequest']['material_id'])
                ->setCellValue('B' . $index, $oneMaterialsRequests['Material']['name'])
                ->setCellValue('C' . $index, $oneMaterialsRequests['MaterialsRequest']['qty'])
                ->setCellValue('E' . $index, $oneMaterialsRequests['MaterialsRequest']['id']);


        $index++;
    }

    /// Set sheet security
    $MaterialsRequestsNo = count($materialsRequests);
    $MaterialsRequestsNo+=1; //add count for header
    $objPHPExcel->getActiveSheet()->getProtection()->setSheet(true);
    $objPHPExcel->getActiveSheet()
            ->getStyle('D2:D' . $MaterialsRequestsNo)
            ->getProtection()->setLocked(
            PHPExcel_Style_Protection::PROTECTION_UNPROTECTED
    );


    // Miscellaneous glyphs, UTF-8
    // Rename worksheet
    $objPHPExcel->getActiveSheet()->setTitle('Supply');


    // Set active sheet index to the first sheet, so Excel opens this as the first sheet
    $objPHPExcel->setActiveSheetIndex(0);


    // Redirect output to a clientâ€™s web browser (Excel2007)
    header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
    header('Content-Disposition: attachment;filename="Supply.xlsx"');
    header('Cache-Control: max-age=0');
    // If you're serving to IE 9, then the following may be needed
    header('Cache-Control: max-age=1');

    // If you're serving to IE over SSL, then the following may be needed
    header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
    header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); // always modified
    header('Cache-Control: cache, must-revalidate');// HTTP/1.1
    header('Pragma: public'); // HTTP/1.0

    $objWriter=PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel2007');
    $objWriter->save('php://output');

    exit;
}

当我调用此函数时，从我在灯上操作的本地服务器上我可以获得excel表，并且在调用该函数后网页将关闭，但是当我调用它时，但是在我的apache服务器上它会显示错误： ERR_INVALID_RESPONSE，我通过代码放了一个die（）;在每一行后看看它会如何响应，直到在$objWriter=PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel2007');之后放一个die（）它会下载电子表格但是它会被破坏并且不会关闭页面而且不会显示该错误消息，但显然$objWriter->save('php://output');导致错误出现，页面将冻结，excel文件将无法下载。

我调试别人的代码，但我无法弄清楚这一部分。

Answer 1

我遇到了同样的问题。检查“php -m”它给你一个模块列表，并检查你是否安装了“zip”模块。 http://php.net/manual/en/book.zip.php

PhpExcel需要此模块。如果您没有，请尝试安装或更改您的php版本。在我的情况下，我解决了将我的PHP从7更改为PHP 5.5

Answer 2

最终问题发生在ZipArchive类中，这就是为什么它在一台服务器上运行而在另一台服务器上不起作用的原因。

此处有更多文档：http://symfony.com/doc/current/reference/forms/types/entity.html#basic-usage

Answer 3

您可以尝试保存到临时文件并使用重定向服务：

$objWriter->save('wwwroot/some-file.xlsx');
header("Location: /some-file.xlsx");
exit();

Answer 4

现在在php 7.4中，您必须使用--with-zip选项

Answer 5

在 php 7.4 中

//$objWriter=PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel2007');

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');

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

exit;

生成和下载excel文件会生成ERR_INVALID_RESPONSE

5 个答案: