Symfony2 create and download zip file

Question

I have one application that upload some files and then I can compress as zip file and download.

The export action:

public function exportAction() {
          


        

Answer 1

Since Symfony 3.2+ can use file helper to let file download in browser:

public function someAction()
{
    // create zip file
    $zip = ...;

    $this->file($zip);    
}

Answer 2

Work for me. Where $archive_file_name = 'your_path_to_file_from_root/filename.zip'.

$zip = new \ZipArchive();

if ($zip->open($archive_file_name, \ZIPARCHIVE::CREATE | \ZIPARCHIVE::OVERWRITE) === TRUE) {
  foreach ($files_data as $file_data) {

    $fileUri = \Drupal::service('file_system')->realpath($file_data['file_url']);
    $filename = $file_data['folder'] . $file_data['filename'];
    $zip->addFile($fileUri, $filename);
  }
  $zip->close();
}


$response = new Response();

$response->headers->set('Cache-Control', 'private');
$response->headers->set('Content-type', 'application/zip');
$response->headers->set('Content-Disposition', 'attachment; filename="' . basename($archive_file_name) . '"');
$response->headers->set('Content-length', filesize($archive_file_name));

// Send headers before outputting anything.
$response->sendHeaders();
$response->setContent(readfile($archive_file_name));
return $response;

Answer 3

SYMFONY 3 - 4 example :

use Symfony\Component\HttpFoundation\Response;

/**
* Create and download some zip documents.
*
* @param array $documents
* @return Symfony\Component\HttpFoundation\Response
*/
public function zipDownloadDocumentsAction(array $documents)
{
    $files = [];
    $em = $this->getDoctrine()->getManager();

    foreach ($documents as $document) {
        array_push($files, '../web/' . $document->getWebPath());
    }

    // Create new Zip Archive.
    $zip = new \ZipArchive();

    // The name of the Zip documents.
    $zipName = 'Documents.zip';

    $zip->open($zipName,  \ZipArchive::CREATE);
    foreach ($files as $file) {
        $zip->addFromString(basename($file),  file_get_contents($file));
    }
    $zip->close();

    $response = new Response(file_get_contents($zipName));
    $response->headers->set('Content-Type', 'application/zip');
    $response->headers->set('Content-Disposition', 'attachment;filename="' . $zipName . '"');
    $response->headers->set('Content-length', filesize($zipName));

    @unlink($zipName);

    return $response;
}

Answer 4

I think its better that you use

$zipFilesIds = $request->request->get('zipFiles')
foreach($zipFilesIds as $zipFilesId){
  //your vérification here 
}

with the post variable of your id of zip = 'zipFiles'. Its better of fetching all $_POST variables.

Answer 5

To complete vincent response, just add this right before returning response :

...
$response->headers->set('Content-length', filesize($zipName));

unlink($zipName);

return $response;

Answer 6

solved:

$zip->close();
header('Content-Type', 'application/zip');
header('Content-disposition: attachment; filename="' . $zipName . '"');
header('Content-Length: ' . filesize($zipName));
readfile($zipName);

apparently closing the file is important ;)