security problem

[Anon]

Hi,

I am calling a link to the URL below

http://www.mysite.com/myfile.php?id=sch/101

id is the id of the user who is logged in.

The id is an auto generated unique value, created when a user signs up. So if someone types in sch/102, then it will use that value. I need to prevent this. Which is the best way to do this.

Give your suggestions,
Thank You.

[Anon]

U can probably try passing it using forms if that is an option..

[Anon]

I am using a redirection statement like

print header("Location: myfile.php?id=$id");

so the question of using forms does not arise i think