download file php

download file php

$fp = fopen("file.csv", 'rb');

$stream = new \Slim\Http\Stream($fp); // create a stream instance for the response body

return $res->withHeader('Content-Type', 'application/force-download')
           ->withHeader('Content-Type', 'application/octet-stream')
           ->withHeader('Content-Type', 'application/download')
           ->withHeader('Content-Description', 'File Transfer')
           ->withHeader('Content-Transfer-Encoding', 'binary')
           ->withHeader('Content-Disposition', 'attachment; filename="file.csv"')
           ->withHeader('Expires', '0')
           ->withHeader('Cache-Control', 'must-revalidate, post-check=0, pre-check=0')
           ->withHeader('Pragma', 'public')
           ->withBody($stream); // all stream contents will be sent to the response