db2_connect with PHP (how to?)

Hello
I’m trying to access a IBM DB2 database
via PHP

As soon as I call db2_connect(…) in the
php code, I get a db2_connect Undefined function error message,
so it is not finding this function in the IBM DB2 stuff.

I made sure that my php.ini has a line that says
extension=php_ibm_db2.dll
and that the php_ibm_db2.dll exists
in the “C:\Program Files\xampp\php\ext” directory
(I also copied php_ibm_db2.dll to
c:\windows\system32 just to be sure).

My operating system is windows xp pro sp2
and my server package is called XAMPP Version 1.5.0-pl1

Am i missing something and if so,
how do I get it?

Thanks

Refer