PHPExcel強制下載問題

Question

我知道這個問題可能已經被問了幾遍，但是我找不到這個問題的確切答案。 我正在使用PHPExcel生成Excel文件（顯然），並且代碼可以生成文件，但是當我包含“強制下載”的代碼時卻沒有，它破壞了文件。 我最新的腳本版本如下所示：

function make_xls_spreadsheet(){

/** Error reporting */
error_reporting(E_ALL);

/* Set the save path */
define('XLSX_SAVE_PATH', 'tmp/');

/** Include path **/
set_include_path(get_include_path() . PATH_SEPARATOR . 'Classes/');

/** PHPExcel */
include 'PHPExcel.php';

/** PHPExcel_Writer_Excel2007 */
include 'PHPExcel/Writer/Excel2007.php';


/* Create a new PHPExcel Object */
$objPHPExcel = new PHPExcel();


/* Add some metadata to the file */
$objPHPExcel->getProperties()->setCreator("Maarten Balliauw");
$objPHPExcel->getProperties()->setLastModifiedBy("Maarten Balliauw");
$objPHPExcel->getProperties()->setTitle("Office 2007 XLSX Test Document");
$objPHPExcel->getProperties()->setSubject("Office 2007 XLSX Test Document");
$objPHPExcel->getProperties()->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.");

/* Set active worksheet to first */
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->setTitle('Segments');

/* Add some data to the worksheet */
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->SetCellValue('A1', 'Hello');
$objPHPExcel->getActiveSheet()->SetCellValue('B2', 'world!');
$objPHPExcel->getActiveSheet()->SetCellValue('C1', 'Hello');
$objPHPExcel->getActiveSheet()->SetCellValue('D2', 'world!');


/* Write to server */
$objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);

$filename = "tony1.xlsx";

// Works fine up to here

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

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


echo "DONE!";

$objPHPExcel->disconnectWorksheets();
unset($objPHPExcel);



}

記住，當我刪除強制代碼部分時，將生成文件，並且可以將其傳輸到FTP。 但是，生成和強制執行文件都會給我一個損壞的文件。 通常，我可以單擊“打開並修復”（Office2011 MacOSX），但顯然這是不可取的。

有人可以幫助我理解：

1. 為什么將其生成為損壞？ 以及為什么當我不強制下載時它可以正常工作。
2. 保存/強制的正確順序是什么（使用PHP的header（）函數）
3. 如果有更好的方法可以做到這一點。

非常感激！！

****更新****這是我單擊“修復並修復”時的代碼：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<recoveryLog xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
    <logFileName>Repair Result to tony1 03178.xml</logFileName>
    <summary>Errors were detected in file 'Macintosh HD:Users:tony.diloreto:Downloads:tony1.xlsx'</summary>
    <additionalInfo><info>Excel completed file level validation and repair. Some parts of this workbook may have been repaired or discarded.</info></additionalInfo>
</recoveryLog>

Answer 1

//答案實際上屬於@Dagon

答案實際上很簡單，只需要一個簡單的exit(); 呼叫。

最終代碼塊：

function make_xls_spreadsheet(){

/** Include path **/
set_include_path(get_include_path() . PATH_SEPARATOR . 'Classes/');

/** PHPExcel */
include 'PHPExcel.php';

/** PHPExcel_Writer_Excel2007 */
include 'PHPExcel/Writer/Excel2007.php';


/* Create a new PHPExcel Object */
$objPHPExcel = new PHPExcel();

/** Determine filename **/
$filename = "tony1.xlsx";

/** Set header information **/
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="' . $filename . '"');
header('Cache-Control: max-age=0');


/* Add some metadata to the file */
$objPHPExcel->getProperties()->setCreator("Maarten Balliauw");
$objPHPExcel->getProperties()->setLastModifiedBy("Maarten Balliauw");
$objPHPExcel->getProperties()->setTitle("Office 2007 XLSX Test Document");
$objPHPExcel->getProperties()->setSubject("Office 2007 XLSX Test Document");
$objPHPExcel->getProperties()->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.");

/* Set active worksheet to first */
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->setTitle('Segments');

/* Add some data to the worksheet */
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->SetCellValue('A1', 'Hello');
$objPHPExcel->getActiveSheet()->SetCellValue('B2', 'world!');
$objPHPExcel->getActiveSheet()->SetCellValue('C1', 'Hello');
$objPHPExcel->getActiveSheet()->SetCellValue('D2', 'world!');


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

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

exit();

}

Answer 2

這會將excel文件吐出到瀏覽器中：

readfile(XLSX_SAVE_PATH . $filename);  

然后將其吐出，這成為瀏覽器下載的excel文件的一部分

echo "DONE!";

本質上你是在發送

[excel data]DONE!

當Excel僅期望

[excel data]

Answer 3

嘗試像這樣修改File.php：

受保護的靜態$ _useUploadTempDirectory = TRUE;

在文件夾phpexcel / Classes / PHPExcel / Shared中（這不是最好的方法，但是對我有用）。