php - Symfony2 : mime_content_type() not recognized

Question

我的 Controller 看起来像这样:

public function download($filepath)
{
    // Generate response
    $response = new Response();

    // Set headers
    $response->headers->set('Cache-Control', 'private');
    $response->headers->set('Content-type', mime_content_type($filepath));
    $response->headers->set('Content-Disposition', 'attachment; filepath="' . basename($filepath) . '";');
    $response->headers->set('Content-length', filesize($filepath));

    // Send headers before outputting anything
    $response->sendHeaders();

    $response->setContent(readfile($filepath));
}

将文件路径传递给它会导致以下错误消息:

Call to undefined function MyBundle\Controller\mime_content_type()

我该如何解决这个问题？

Answer 1

尝试使用File Class

$oFile = new File($filepath);
$response->headers->set('Cache-Control', 'private');
$response->headers->set('Content-type', $oFile->getMimeType());
$response->headers->set('Content-Disposition', 'attachment; filepath="' . $oFile->getBasename() . '";');
$response->headers->set('Content-length', $oFile->getSize());

我没有通过运行代码进行测试。希望这能正常工作。不要忘记添加

use Symfony\Component\HttpFoundation\File\File; 

文件顶部的语句。

希望这对您有所帮助。