DL a photo vs. DL a video in php

[ichiriki]

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hey guys..
im trying to download a video using php but there seems to be a bug in my code. I allow users to upload and videos in my system but i also want them to download it. I have a code to download a photo and i am using this header configuration:

    header('Content-Description: File Transfer');
            header('Content-Type: application/octet-stream');
            header('Content-Disposition: attachment; filename='.basename($pic));
            header('Content-Transfer-Encoding: binary');
            header('Expires: 0');
            header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
            header('Pragma: public');
            header('Content-Length: ' . filesize($pic));
            ob_clean();
            flush();
            readfile($pic);
            exit; 

it works ok in downloading a photo but i tried to use this code for downloading a video and its not working. So my question is "Is the header configuration of downloading a photo the same with the header configuration of downloading a video??"

can any one help me plssss...

[tynum]

ayaw na kabalaka ana juno... daug naka sa tagaytay leadership training... use THE SECRET... hahaha...

lahi man jd cguru imong gamiton na header configuration kay g.try na gd nmu nya wala ni work... so lahi jd.... awa daw ang lain possible values for header('Content-Transfer-Encoding: binary'); murag d rana xa binary pirmi...