php - Laravel 3 create Text (CSV) file -

hello trying grab emails database, output them text (comma separated) file. here have done not work:

public function get_textfile() {  $emails = staff::get('email');  header("content-type: text/csv");   header("cache-control: no-store, no-cache");   header('content-disposition: attachment; filename="filename.txt"');  $stream = fopen("php://output", 'w');  foreach($emails $email) { fputcsv($stream, $email, ','); }  fclose($outstream);      }  return (something)? 

getting this: error 6 (net::err_file_not_found): file or directory not found.

this route:

    route::get('textfile', array('as' => 'textfile','uses' => 'admin@textfile')); 

try file_put_contents($filename, implode(',', staff::get('email')));