if script executing locally- do this, if remote-do that

hello everyone,

  need some advice on the best way to do this, not sure if some logic like this is even needed, i may be over thinking it.

First a little background:

I have a clipbucket 2.6 site.  works great on remote.  when i install with xampp on my personal computer errors being thrown of

Call to undefined method ADODB_mysql::select()

now i found a fix for this on their site, it is to change a line in their code:

require 'adodb/adodb.inc.php';

to something that will reference the file correctly in a local environment.  some people suggest

require '/FULL PATH TO/adodb/adodb.inc.php';

but that does not work for me, i get errors of not being able to find file, turns out it only works on wamp or lampp, i use xampp

THIS is what works on my local xampp test server:

require 'C:\xampp\htdocs\videoz\includes\adodb\adodb.inc.php';

NOW MY QUESTION:

require 'C:\xampp\htdocs\videoz\includes\adodb\adodb.inc.php';

will not work on remote to reference the file correctly.

How can i make some logic to decide if a script is being executed on local or remote and include a filepath accordingly?

if file exists?

server root?

suggestions?'

ideas?

is this even the right way to go about this?  I cant figure out a way to scructure the include to work with both, i have it disabled to use variables in include statements (whatever its called), ha

any suggestions on how to do this effectively and most importantly safely??

thanks a ton for your attention!