[PHP] Update problem

[Maldiv]

Hello,

I have a php update form which use $_POST and $_GET too. I call the update
like this update.php?id=1
And after the user submit the form with new data I use command like this:
UPDATE table SET id=$_POST['id'] WHERE $_GET['id']='1';

This code works on localhost with Apache 2, Win XP, and Php 4.3.5 but it
doesn't works on my real server(Php 4.3.3, Linux, Apache 1.??)
I debuged it and I realised that on localhost I have the correct value in
the $_GET but in remote $_GET is empty.

What can I do?

Thanks!

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[PHP] Password protected downloads

[Maldiv]

Hello,

I want to make a password protected download possibility on my site. I know
how can I handle normal user login, but how can I protect a download from
guests?
I mean if user navigate to www.demo.com/mydownload.zip than he can download
the file without login. How can I prevent this downloads?

Thanks for your help!

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