newbie image upload form that accepts post

[jhave]

hello,

sorry for simple question

i'd like to pass a variable using post into the following form (that is from php.net)
using a variable passed from a flash page (i'm competent in flash but a novice in php)

how do integrate:

$folder = $_POST['folder']."/";

into the form so that when submit occurs the folder path is passed to upload.php :

<!-- The data encoding type, enctype, MUST be specified as below -->
<form enctype="multipart/form-data" action="upload.php" method="POST">
<!-- MAX_FILE_SIZE must precede the file input field -->
<input type="hidden" name="MAX_FILE_SIZE" value="30000" />
<!-- Name of input element determines name in $_FILES array -->
Send this file: <input name="userfile" type="file" />
<input type="submit" value="Send File" />
</form>

thanks in advance
jhave

[weekender]

you can pass anything using a hidden input - just give it the name "folder" and your php script will hold it in the $_POST superglobal

are you saying you want the folder name of the uploaded image? that would only be available in the form handler, not the form itsself (as the file has not been uploaded until the form is sent)

[jhave]

thanks for yr reply

i'll try to explain more clearly
(and keep in mind i'm a real php newbie)

the flash file is passing using POST a folder name which is the desired folder destination on the server for the file that the user will upload in the form

an echo shows that the POST has worked

but i can't figure out how to make that variable be accessible to the form so that it can pass it to upload.php
after the file is selected....

here is the code

<?
$folder = $_POST['folder']."/";
echo $folder;
?>

<form enctype="multipart/form-data" action="upload.php" method="POST">
<!-- MAX_FILE_SIZE must precede the file input field -->
<input type="hidden" name="MAX_FILE_SIZE" value="30000" />
<!-- Name of input element determines name in $_FILES array -->
Send this file: <input name="userfile" type="file" />
<input type="submit" value="Send File" />
</form>

thnks again in advance
all suggestions welcome

jhave

[weekender]

oh right i've got it now

in your form, put the following field

<input type="hidden" name="folder" value="<?php echo $_POST['folder']; ?>">

this will pass the value through the second form, to your php script.

hope that helps! adam

[jhave]

thanks very much

that was exactly what i was after : correct syntax!

(and just in case: if you know of a way to go directly to the file dialog box, let me know....bypassing the php page (or at least having it invisible...)

cheers
jhav