php - convert setHeader to use https -

can please in converting bit of code send header response via https in php

protected function _senduploadresponse($filename, $content, $contenttype='application/octet-stream') {     $response = $this->getresponse();     $response->setheader('http/1.1 200 ok','');     $response->setheader('pragma', 'public', true);     $response->setheader('cache-control', 'must-revalidate, post-check=0, pre-check=0', true);     $response->setheader('content-disposition', 'attachment; filename='.$filename);     $response->setheader('last-modified', date('r'));     $response->setheader('accept-ranges', 'bytes');     $response->setheader('content-length', strlen($content));     $response->setheader('content-type', $contenttype);     $response->setbody($content);     $response->sendresponse();     die; }