[FX.php List] PHP.ini question

[John Funk]

This may not be the place but I need to find out why on my Apache test
server (Mac OS), can I use the PHP function (Require_Once) / (Include_once)
just fine but on my production s Apache server (Unix) the PHP script just
stalls right at the first occurance of this function.
 My server guy told me to compare PHP.ini files to see what is different.
The PHP versions are 4.1.2 (test server) and 4.2.1 (Production).

Any more ideas out there?

Thanks
John Funk