Problem running some, but not all scripts

[halfwitted]

I've writen a simple PHP script the includes if it has a vareable in it.

such as htdocs/this/index.php?id=about I uploaded is to my serever and it worked, but on my home computer it wont work. I have apache and PHP installed. The really weird thing is that I can run simple echo (" "(scrips and include (" ") scrips and they work, but when i try to use a vareable in the address to call a file it's messes up.

Could this be because i have PHP installed wrong? It would seem if one script works the all shoud, I'm rather baffeld here, so any tips you could give me would be great!

thanks.

[ir4z0r]

register_globals is probably off

variables passed by ? in the url are retrieved with $GET['var']
and FORM-Data (method=post) with $POST['var']

no $ in the [' ']

[halfwitted]

Thanks! Everything is better now!
thanks for you help once again,
Philip