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File download using BinaryFileResponse works for a while, then fails

I use this function to download MP3 files from my server; The files are a few megs large, anywhere between 1 and 10 megs. It works very well however it stops working after a while, it then permanently raises an error (catch section) whenever we use the function, this until I restart the web server. As soon as I restart it, it resumes behaving correctly. The web server is OpenLiteSpeed 1.4.

Kindly advise if I am using the BinaryFileResponse function correctly or not?

function getFile($user_id, $filename)
{
    if (empty($filename)) {
        throw new InvalidArgumentException('Please provide a valid filename.');
    } else {
        $filepath = "../files/$filename";

        BinaryFileResponse::trustXSendfileTypeHeader();

        try {
            $response = new BinaryFileResponse($filepath);

            $mimeTypes = new MimeTypes();
            $mimeType = $mimeTypes->guessMimeType($filepath);

            $response->headers->set('Content-Type', $mimeType);
            $response->setAutoEtag();
            $response->setContentDisposition(
                ResponseHeaderBag::DISPOSITION_ATTACHMENT,
                $filename
            );
        } catch (FileNotFoundException $exception) {
            $response = new JsonResponse(
                ['Status' => 'Error', 'Message' => DEBUG ? $exception->getMessage() : 'File not found.'],
                Response::HTTP_NOT_FOUND
            );
        }
    }

    return $response;
}

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Answer

I searched for hours but couldn’t find an answer so I then decided to take a totally different approach which works fine:

$filename = basename($filepath);

set_time_limit(0);
ini_set('memory_limit', '25M');

while (ob_get_level()) ob_end_clean();
header('Content-Type: audio/mpeg');
header('Content-Disposition:  attachment; filename=' . basename($filepath));
header('Cache-Control: no-cache');
header("Content-Transfer-Encoding: chunked");
ob_flush();
flush();
readfile($filepath);
exit;
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