Hi all.

[description]
I experience a problem that the header() function does not work correctly after session_start is called. What I am trying to achive is to download a file, using header().
[/description]

[code]
The following code works:

<?php
   $dlfile = "./temp.zip";
   header("Content-Type: application/download-script-by-hex\n");
   header("Content-Disposition: attachment; filename=\"$dlfile\"");
   header("Content-Transfer-Encoding: binary");
?>


The following code fails:

<?php
   session_start();
   $dlfile = "./temp.zip";
   header("Content-Type: application/download-script-by-hex\n");
   header("Content-Disposition: attachment; filename=\"$dlfile\"");
   header("Content-Transfer-Encoding: binary");
?>

[/code]

[errors]
I also set the value of session.track_sid to 0, (as advised in Bug #19991), with no luck.

When I access this page with IE 6.00.2600.0000, running on Windows 2000, it givies `Internet Explorer is unable to open this Internet site'.

When I use Lynx, running on FreeBSD 4.7, I can download the file, but I receive a 4 byte ascii file, containing nothing but spaces.

The file I am trying to download is a 387 byte zipped file.
[/errors]

[setup]
The PHP installation runs on FreeBSD 4.7, together with Apache 1.3.27.

[PHP Configure options]
./configure --with-openssl --with-mysql=/usr/local/mysql --with-trans-sid --enable-sockets --with-apxs=/usr/local/apache/bin/apxs

Please note that I have tried this setup with both PHP 4.2.3 and PHP 4.3.0-Pre1, both with setting session.trans_sid=1 and session.trans_sid=0 set in the config file.
[/PHP Configure options]
[setup]

Regards
Jaco van Tonder