Separate FM PHP API on Linux Webserver

For security reasons I had to install the FM PHP API on a own Linux server with Apache + PHP 5. The database is running on a FMS 9 Adv.

Up to now I was not able to get the stuff working. I put my own php files + the FileMaker.php and the FileMaker folder at the same place.

When a open the php file with the browser I just see a blank page. The last performed line in the php script is always this:

  //create the FileMaker Object

  $fm = new FileMaker();

Has anybody a suggestion, what I do wrong or what is missing?

The error messaging in the php.ini is activated, but i see no errors.

Thanks a lot for any idea.

Thomas