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Hi all,

I'm trying to write a php script for on the fly compression and download.
I have lots of problems trying to get it working on this particular web server.
This is my code:
header('Content-Type: application/octet-stream');
header('Content-disposition: attachment; filename=""');
//$fp = proc_open('zip -r9 - foldertocompress', 'w');
//$fp = system('zip -r9 ');
// pick a bufsize that makes you happy (8192 has been suggested).
$bufsize = 8192;
$buff = '';
while( !feof($fp) ) {
   $buff = fread($fp, $bufsize);
   echo $buff;
I am trying out different commands to see which works, and the amusing thing
is that it starts to download even with the 2 lines assigning to $fp commented out?!
I really don't understand this, where is $fp getting its data from?
Posted 7-May-11 8:14am

1 solution

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Solution 1

Thanks for viewing.
I found my solution here:[^]
The files seems pretty high level for my understanding.
Anybody care to explain a little for just for education's sake?


As an update, I found that it only allows downloads till the php memory limit size.
Anybody found a solution that works for compressing big file directories? ~250mb??

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