[Charter]

http://www.phpdig.net/forum/showthread.php?t=1760

or config file...

define('LIST_ENABLE',true);                      // activates/deactivates listing of past queries
define('LIST_PAGE','list.php');                  // the name of the list page
define('LIST_NEW_WINDOW',1);                     // open queries in new window
define('LIST_SHOW_ZEROS',0);                     // show queries with zero results
define('LIST_DEFAULT_LIMIT',20);                 // listings per page - positive integer of ten - 10,20,30,...
define('LIST_META_TAG','<meta name="robots" content="noindex,nofollow">'); // meta tag for list page