I have narrowed down my issue to the following case.
I have a simple file 'test.php'
<?php
mkdir("w:/Input/47/");
?>
When I run it from command line (php -f test.php), it successfully creates the directory.
When I run it through the windows version of Apache, I get:
[17-Dec-2012 16:29:49] PHP Warning: mkdir(): No such file or directory in C:\Program Files (x86)\Apache Software Foundation\Apache2.2\htdocs\ReportComp\test.php on line 2
I'm running Apache 2.2 (64bit) in Windows 7 (64 bit) as my domain user name (the same one I'm logged into my desktop as)
The 'w' drive is a network drive that (I believe) is also running windows.
Any thoughts?