exporting a csv file

[thdelerme]

Hello,
I don't know how to export (or to download ) a file from the serveur to a local station
I have tried something like
- building a file ( nam in $filename)
- header('Content-Disposition: attachment; filename="'.$filename.'"');
- header('Content-Disposition: attachment; filename="'.$filename.'"');
- readfile($filename);

But that's not a good way

Some one can help
Thank you

[acenes]

Look for Controller::sendFileToBrowser() in the API Reference