Symfony 1.4:最佳方式是在不使用模板/视图的情况下提供文件下载

Question

对于cource,其他一些人已经在stackoverflow上讨论过这些问题,但并非所有的ansers都适合我,并且通常他们不提供symfony安装的版本.

我读过的主题:

• 从Symfony行动发送附件/下载文件
• 如何使用PHP-Symfony单击文件路径下载文件？
• symfony:setHttpHeader()不起作用,header()没有

这就是我要问你如何处理symfony 1.4中的文件下载(不使用视图)的问题？在我的所有用例中,我需要一个模板文件来呈现响应.如果我发送响应由于控制器有唯一的可能性发送它没有PHP错误(标头已发送)与

控制器:

/** @var $response sfWebResponse */
$response = $this->getResponse();
$response->clearHttpHeaders();
$response->setContentType($mimeType);
$response->setHttpHeader('Content-Disposition', 'attachment; filename="' . basename($filePath) . '"');
$response->setHttpHeader('Content-Description', 'File Transfer');
$response->setHttpHeader('Content-Transfer-Encoding', 'binary');
$response->setHttpHeader('Content-Length', filesize($filePath));
$response->setHttpHeader('Cache-Control', 'public, must-revalidate');
$response->setHttpHeader('Pragma', 'public');
$response->sendHttpHeaders();

readfile($filePath); die();

这没有模板文件.但imho这不是那么漂亮的编码.

模板的替代方法:

控制器:

 /** @var $response sfWebResponse */
$response = $this->getResponse();
$response->clearHttpHeaders();
$response->setContentType($mimeType);
$response->setHttpHeader('Content-Disposition', 'attachment; filename="' . basename($filePath) . '"');
$response->setHttpHeader('Content-Description', 'File Transfer');
$response->setHttpHeader('Content-Transfer-Encoding', 'binary');
$response->setHttpHeader('Content-Length', filesize($filePath));
$response->setHttpHeader('Cache-Control', 'public, must-revalidate');
$response->setHttpHeader('Pragma', 'public');
$response->setContent(file_get_contents($filePath));
$response->sendHttpHeaders();

return sfView::NONE;

视图:

<?php echo $sf_response->getRawValue()->getContent(); ?>

Answer 1

我的首选解决方案

$filePath = $document->getAbsoluteFilePath();
$mimeType = mime_content_type($filePath);

/** @var $response sfWebResponse */
$response = $this->getResponse();
$response->clearHttpHeaders();
$response->setContentType($mimeType);
$response->setHttpHeader('Content-Disposition', 'attachment; filename="' . basename($filePath) . '"');
$response->setHttpHeader('Content-Description', 'File Transfer');
$response->setHttpHeader('Content-Transfer-Encoding', 'binary');
$response->setHttpHeader('Content-Length', filesize($filePath));
$response->setHttpHeader('Cache-Control', 'public, must-revalidate');
// if https then always give a Pragma header like this  to overwrite the "pragma: no-cache" header which
// will hint IE8 from caching the file during download and leads to a download error!!!
$response->setHttpHeader('Pragma', 'public');
//$response->setContent(file_get_contents($filePath)); # will produce a memory limit exhausted error
$response->sendHttpHeaders();

ob_end_flush();
return $this->renderText(readfile($filePath));

无需使用模板文件.使用symfony标准行为.重要提示:模板文件必须存在!