Do not rely on current working directory being in the include path

www/index.php

@@ -3,7 +3,7 @@
  * This is the main file for the graduate catalog.
  */
 
-require_once '../config.inc.php';
+require_once dirname(__DIR__).'/config.inc.php';
 $catalog = new UNL_Catalog();
 $catalog->run();