This is probably a simple one...

I've got a php page which contains a form, I only want this form to be accessed if users have come from page1.php or page2.php, if they havn't come from these pages I want them to be redirected to page3.php.

Any ideas?

Thanks
Simon

You could check the referrer with $_SERVER['HTTP_REFERER'];

But some browsers and firewalls dont pass on the referrer, so it wouldnt work for everyone.

I really need something that would work for everyone, if possible.

The idea is that page 1 or 2 contains the first part of the form (depending on which is selected). Then part 2 of the form contains an upload applet, but before uploading we need to make sure we have the file info which is provided in page 1 or 2.

Most users would do this correctly, but I don't want people to bookmark the upload applet and then access it directly. Otherwise we will have no notification of new uploads, or the details.

Thanks for your help
Simon

I go about things like this using a hidden variable.

On your first form page, you would include a hidden variable like so:

<input type="hidden" value="1" name="check_formsubmit">

And then, on the next page (the one you want to protect), you would have to do a check to see if this variable has been passed. But first, you would need to create that variable in PHP, like this:

PHP Code:

$check_formsubmit = $_POST['check_formsubmit']; 


The part that checks if the form has been submitted would look like:

PHP Code:

if ($check_formsubmit == 1) {
*Page code here*
}

else {
echo "You must complete the first part of our forum first! *link here*";
} 


I hope this works for you, as I was pulling this all from my head, and I'm still relatively new with PHP. If you have any problems with this, I can check it against the code I use for this kind of thing.

Hope this helps!