Question

I’ve got an embedded mp3 player that i’m running in a webpage. When i load a physical mp3’s path as the file url, it works just fine, but when i try to load mp3 binary data from a php endpoint, it fails.

here’s what I’d doing to output the mp3 data via php:

//Begin writing headers
header( 'Pragma: public' );
header( 'Expires: 0' );
header( 'Cache-Control: must-revalidate, post-check=0, pre-check=0' );
header( 'Cache-Control: public' );
header( 'Content-Description: File Transfer' );
header( 'Content-Type:audio/mpeg');
header( 'Content-Disposition: inline;');
header( 'filename=SoundFile.mp3' );
header( 'Content-Transfer-Encoding: binary' );

//supply the length
$len = strlen($res['ReturnValue']);
header( 'Content-Length: ' . $len );

echo $res['ReturnValue']; exit();
// $res['ReturnValue'] is the actual binary data of the mp3

Also, when I run that php code in the browser, it causes a file download of the correct name and filesize, but the file itself wont play on anything (itunes / winamp / etc) as if it is corrupt.

What am I doing wrong with the output of this data that is causing it to not play in the embedded mp3 player?

Answer 1

The byte data was not being correctly output to me, thus, my headers were not the problem.