Display a download dialog for pdf in PHP

$filename = /path/to/your/file/download.pdf;header('Pragma: public');header('Expires: 0');header('Pragma: no-cache');header('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0');header('Content-Type: application/force-download');header('Content-Type: application/octet-stream');header('Content-Type: application/download');header('Content-disposition: attachment; filename=' . basename($filename));header('Content-Type: application/pdf');header('Content-Transfer-Encoding: binary');header('Content-Length: ' . filesize($filename));@readfile($filename);exit(0);