Including a php file

[Triky]

Hello, I include a php file via plugin using this code:

ob_start();
  include('http://www.site.com/test/includes/dbar.php');
  $includedphp = ob_get_contents();
  ob_end_clean();

And in my header template:

$includedphp

.. but I get this error:

Warning: Unknown(http://www.siet.com/test/includes/dbar.php): failed to open stream: Connection refused in [path]/global.php(384) : eval()'d code on line 3

Warning: (null)(): Failed opening 'http://www.site.com/test/includes/dbar.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in [path]/global.php(384) : eval()'d code on line 3

Can you please help me?