At 06:39 15.11.2002, Twist said:
--------------------[snip]--------------------
> This is all great, the problem is that it loads a new page
>the way I am doing it. I am using the header() function to get the
>browser to download. I have seen sites with counters that download
>the file and update the count without loading a new page, without
>reloading the current page even. So I am wondering how are they
>doing this? Or better yet how can I get my script to work like I
>wish it to?
--------------------[snip]--------------------
With MIME (and HTTP is MIME-compliant) you can transmit more than one
entity in a single pass - this is called "multipart" transmission. The
recipient (here: the browser) should handle all parts of a multipart
message per se.
What you need to do is to set the content type of the response to
multipart/alternative, and transmit the HTML result first, and the file
content next. Both parts are delimited by a boundary string, and each part
has its own MIME header.
Something like:
// construct the "alternative" hader for the site's response
$boundary = md5(date('hisjmy'));
header("Content-type: multipart/alternative; boundary=\"$boundary\"");
// The HTML page starts with a boundary and its own MIME header
$html_head = "--$boundary\n" .
"Content-Type: text/html\n" .
"Content-Disposition: inline\n\n";
// The Attachment starts with another MIME header
$attach_head = "\n--boundary\n" .
"Content-Type: application/octet-stream\n" .
"Content-Transfer-Encoding: base64\n" .
"Content-Disposition: attachment;\n" .
" filename=\"$filename\"";
Your response would then look something like this:
echo $html_head;
echo $html_page_contents;
echo $attach_head();
transmit_file_content();
echo "\n--$boundary\n";
This is top off my head, but it should work. For more information on
multipart responses you might consult
ftp://ftp.rfc-editor.org/in-notes/rfc2045.txt (MIME Part I)
ftp://ftp.rfc-editor.org/in-notes/rfc2046.txt (MIME Part II)
ftp://ftp.rfc-editor.org/in-notes/rfc2047.txt (MIME Part III)
ftp://ftp.rfc-editor.org/in-notes/rfc2183.txt (Content-Disposition)
--
>O Ernest E. Vogelsinger
(\) ICQ #13394035
^ http://www.vogelsinger.at/
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