HTTP question: multiple headers..?

Anon

Hi, I'm not hugely up on the HTTP protocal, my problem is that I have a page where once the user has clicked on a button (link or form submission) I need to send them a zip file, on this completing successfully I want to have the browser directed to a completion page ie.

send zip file -> on success -> success page

          -> on failure -> failure page

I have no problem doing one or the other, ie redirecting the browser or sending the user a file using the header() function, the problem is sending one header after the other...Is this possible?
As it requires php to send 2 sets of headers.
And is there a way of getting confirmation of a successful file download?
Any ideas?

Anon

In my experience it's not possible to send two headers; PHP/HTTP barfs when you try to do it.

One way to do it is to separate your 'actions' into functions or if statements that use a particular structure;

if ($action=="send)
{
Do the sending stuff...
if (fail_condition)
{
header("location: ?action=fail")
}
else
{
header("location: ?action=success")
}
}
elseif ($action=="success")
{
Stick another header in here
}

Essentially I tend to separate things into logical steps then go back through the same script...

Hope that helps,

Anon

One way to do it is to separate >your 'actions' into functions or if >statements that use a particular structure;

this is exactly the way I've had it setup, with each part as a seperate function, and then having the code run through with if statements (pretty much identical to your example). PHP sends out a zip file->
here's my virtual zipfile

[zip data]

Warning: Cannot add header information - headers already sent in c:\apache\htdocs\bitesize\shopping\download_it.php on line 123

then the redirect HTML code

[end zip file]

it does "execute" all the code and trys to send the browser to the right page, just it never ends one HTTP stream and starts another.. it all ends up in one bloated zip file... doh!

I've tried a few things like caching the header info using
ob_start();
and
ob_end_flush();
but thats just me clutching at straws really... and it does exactly the same thing.

eezmo

I user an ENCTYPE form to upload an image from client computers
When I tested my script \"localy\" whith the addresse 127.0.0.1/... I could get all informations I need : $image, $image_name, $image_size and $image_type
so i could put the image in a database.

But when I use the script by using the IP address of my server, somme thing like 192.16.5.1, nothing is working. (some times it works and sometimes no ???).

I got this warning message:
\"File Upload Error - No Mime boundary found after start of file header in Unknown on line 0\"

What\'s wrong ??? Thanks for your help.

Sofiane