Php 设置标题并下载文件后，代码不会继续

我有一个索引函数，它显示了一些顺序图。在这个索引视图中，用户可以选择从、到的日期，一旦表单提交，所选日期的订单图就会更新。现在我正在尝试实现另一个功能，将数据导出到excel，方法是在这两个日期选择中添加简单的选择选项

问题是，当您不想导出Excel时，必须设置标题，一旦设置了标题，代码就不能像我所希望的那样继续

这是我的索引函数

public function index() {
        $orderData = $this->Order->getDashboardOrdersStatisticBetweenData();

        if ($this->request->is('post') || $this->request->is('put')) {
            $dateFrom = $this->request->data['orderSumDates']['date_from'];
            $dateTo = $this->request->data['orderSumDates']['date_to'];
            $orderData = $this->Order->getDashboardOrdersStatisticBetweenData($dateFrom, $dateTo);
            if ($this->request->data['orderSumDates']['export_type'] == 'export_excel') {
                $this->generateExcelFile($orderData, $dateFrom, $dateTo);
                die('Code never gets here, but file is downloaded');
            }
        }

        $this->set('orderStatistic', $orderData);
    } 

这是我的生成excel文件功能

protected function generateExcelFile($orderData, $dateFrom, $dateTo) {
        header('Content-type: application/vnd.ms-excel');
        header('Content-Disposition: attachment; filename="OrderReport'.$dateFrom.'-'.$dateTo.'.xlsx"');

        $objPHPExcel = new PHPExcel();
        $objPHPExcel->setActiveSheetIndex(0);
        // Summary of report
        $objPHPExcel->getActiveSheet()->SetCellValue('A5', 'Total number of orders');
        // Some other stuff
        $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
        $objWriter->save('php://output');

        header_remove('Content-type');
        header_remove('Content-Disposition');
    }

---

所以问题是，如果我选择export_excel选项，$this->generateExcelFile函数被执行，excel文件被下载，但其余的代码永远不会发生，比如这个die‘代码永远不会到达这里，但文件被下载’；我不想被处决。我已经做了一些测试，如果我注释掉$this->generateExcelFile函数的头部分，代码通常会被执行，但是excel文件没有正确生成，所以这些头是至关重要的。你能帮我解决我的问题吗

您可以保存该Excel文件，然后使用Cakephp内置函数将其发送到浏览器

1-在TMP文件夹上创建文件夹文件

2-将该文件夹中生成的文件保存到函数中，并返回文件位置

protected function generateExcelFile($orderData, $dateFrom, $dateTo) {
    //header('Content-type: application/vnd.ms-excel'); // REMOVE THIS LINE
    //header('Content-Disposition: attachment; filename="OrderReport' . $dateFrom . '-' . $dateTo . '.xlsx"'); // REMOVE THIS LINE

    $objPHPExcel = new PHPExcel();
    $objPHPExcel->setActiveSheetIndex(0);
    // Summary of report
    $objPHPExcel->getActiveSheet()->SetCellValue('A5', 'Total number of orders');
    // Some other stuff
    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');

    $tmpFile = TMP . "files" . DS . sprintf("excel-file-%s.xlsx", date('Y-m-d-H-i-s')); // The tmp file
    $objWriter->save($tmpFile); // Save on excel file
    return $tmpFile; //send the file location

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

    //header_remove('Content-type'); // REMOVE THIS LINE
    //header_remove('Content-Disposition'); // REMOVE THIS LINE
}

3-在您的操作中，删除此文件后将该文件内容发送到浏览器

public function index() {
    $orderData = $this->Order->getDashboardOrdersStatisticBetweenData();

    if ($this->request->is('post') || $this->request->is('put')) {
        $dateFrom = $this->request->data['orderSumDates']['date_from'];
        $dateTo = $this->request->data['orderSumDates']['date_to'];
        $orderData = $this->Order->getDashboardOrdersStatisticBetweenData($dateFrom, $dateTo);
        if ($this->request->data['orderSumDates']['export_type'] == 'export_excel') {
            $excelFile = $this->generateExcelFile($orderData, $dateFrom, $dateTo);
            //Get the file content
            $content = file_get_contents($excelFile);
            //Delete that file
            unlink($excelFile);
            //Put the content on the response
            $this->response->body($content);
            //Force download (test.xlsx is the file name browser will recieve)
            $this->response->download("test.xlsx");
            //spécify the response type
            $this->response->type("application/vnd.ms-excel");
            //send the response
            return $this->response;
        }
    }

    $this->set('orderStatistic', $orderData);
}

---

是否启用了错误？你检查错误日志了吗？没有错误。。。代码正在运行，问题是写错了。一旦在generateExcelFile函数中设置了头，就不会在索引函数中继续执行。在返回头之前，请尝试执行代码。如果没有执行代码，则可能是某个地方发生了错误，或者代码被明确停止。在函数中，是否尝试返回$objwriter而不是显示它。您可以从控制器中显示它，并在PHPExcel实例运行后设置标题created@TedRed你能分享一个例子吗？谢谢！最后我做的和你做的不完全一样，但是你给了我一些很好的指引；

public function index() {
    $orderData = $this->Order->getDashboardOrdersStatisticBetweenData();

    if ($this->request->is('post') || $this->request->is('put')) {
        $dateFrom = $this->request->data['orderSumDates']['date_from'];
        $dateTo = $this->request->data['orderSumDates']['date_to'];
        $orderData = $this->Order->getDashboardOrdersStatisticBetweenData($dateFrom, $dateTo);
        if ($this->request->data['orderSumDates']['export_type'] == 'export_excel') {
            $excelFile = $this->generateExcelFile($orderData, $dateFrom, $dateTo);
            //Get the file content
            $content = file_get_contents($excelFile);
            //Delete that file
            unlink($excelFile);
            //Put the content on the response
            $this->response->body($content);
            //Force download (test.xlsx is the file name browser will recieve)
            $this->response->download("test.xlsx");
            //spécify the response type
            $this->response->type("application/vnd.ms-excel");
            //send the response
            return $this->response;
        }
    }

    $this->set('orderStatistic', $orderData);
}