Sending correct file size with PHP download script

Question

I created a file download script in PHP, it works, but web browsers report the file as \"Unknown Length\". My code is as follows:

function downloadFile($fil         


        

Answer 1

I had this same problem, and I fixed it by sending the Content-Length header before the Content-Disposition.

header('Content-Type: video/mp4');
header("Content-Transfer-Encoding: Binary"); 
header("Content-Length: ".filesize($file_url));
header("Content-disposition: attachment; filename=\"" . basename($file_url) . "\""); 
readfile($file_url);