Using is_file with a URL

I am trying to find a way to test if a file
on the Internet specified by a URL exists.

I tried using is_file but it doesn't seem
to work on remote files. Only local files.

I tried checking it by opening the file,
but i get an annoying php warning message
when I try that on a file that not exists.

Does anybody have an idea of how to check
if a remote file exits without getting php
warning/error messages?

Thanks in advance
Stig

try using fsockopen() which returns errors for you to play with - its in the manual hidden in chspter XXXV. 'Network functions'

I say hidden cos I always expect to find it in the filesystem functions.

Thanks, it gets me further but not far enough.

I can only get it to verify server hosts,
like www.phplab.dk etc. but when I try to
with a file i.e. www.phplab.dk/test.zip
it fails 🙁

So guess I have to see if I can find another way to do it.

Stig