Checking File types

From: EbanHawk (webmaster_at_nx99.co.uk)
Date: 03/29/04 

Date: Mon, 29 Mar 2004 17:04:21 +0100

I am running on a windows server and learning php.
I have been learning about file tests...
is_executable() is one of the tests, however I get an error from this.
I went to php.net and found that this function will not be available for
windows until version 5
Can anyone tell me an alternative to this function please

Thanks in advance