How to modify excel file using PHPExcel in symfony2

问题

In my project I use symfony2 PHPExcel wrapper https://github.com/liuggio/ExcelBundle

With the example from the link above I can create new excel files. However this file has no style or markup at all. So I created a excel template where I want to input some data.

I know how to load an excel file:

$excelObj = $this->get('xls.load_xls2007')
                 ->load($this->get('kernel')
                 ->getRootDir() . '/../web/excel-template.xlsx');

//custom modifications on excel file

Now I need to create a response. But in the doc of ExcelBundle there is no information on how to do that. They just show how response work for a excel file that is created by code.

I tried:

 $excelService->setExcelObj($excelObj);
 $response = $excelService->getResponse();
 //the rest is equal to the code in the doc

but it gives me a blank excel document.

Any ideas how to make a response with a loaded excel file?

回答1:

you can do this by

// Read the file
    $objReader = PHPExcel_IOFactory::createReader($fileType);
    $objPHPExcel = $objReader->load($fileName);

    // Change the file
    $objPHPExcel->setActiveSheetIndex(0)
                ->setCellValue('A1', 'Hello')
                ->setCellValue('B1', 'World!');

    // Write the file
    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, $fileType);
    $objWriter->save($fileName);

if you dont understand please comment..

回答2:

I would save the file to disk and redirect the user to the on-disk version personally. This will allow several things

Your web server to serve files instead of PHP, a good thing from a performance and memory usage standpoint.
Decouple your architecture a bit to allow for future changes such as moving the creation and loading of Excel files to asynchronous operations.
The ability to use http://wiki.nginx.org/XSendfile (There is an Apache module also).
The user can re-download the file or pause and resume download without recreating it.

To do this you will want to

Save the file to a web accessible temp directory after its created
Redirect the user to that file location
Create a cron or some other job that deletes older files in the temp directory.

The tempfile api (http://us2.php.net/tmpfile) might be useful here.

回答3:

the new version 2.* of PHPExcelbundle could help you.

Is now possible:

//read
$phpExcelObject = $this->get('phpexcel')->createPHPExcelObject('file.xls');
$phpExcelObject->setActiveSheetIndex(0)
  ->setCellValue( 'C6', 'some text' )
  ->setCellValue( 'D6', 'some text2' );
$writer = $this->get('phpexcel')->createWriter($phpExcelObject, 'Excel5');
$writer->save('file.xls');
// or 
$response = $this->get('phpexcel')->createStreamedResponse($writer);

来源：https://stackoverflow.com/questions/13672851/how-to-modify-excel-file-using-phpexcel-in-symfony2

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php

symfony

phpexcel