CODE EXAMPLE FOR PHP

laravel download file

/** @param IlluminateHttpRequest  $request
 * @return IlluminateAuthAccessResponse */
public function download(Request $request)
{
    $file = public_path(). "/images/test.jpg";
    $headers = ['Content-Type: image/jpeg'];
    if (file_exists($file)) {
        return Response::download($file, 'plugin.jpg', $headers);
    } else {
        echo('File not found.');
    }
}