&reftitle.install; To enable Sybase-DB support configure PHP . DIR is the Sybase home directory, defaults to /home/sybase. To enable Sybase-CT support configure PHP . DIR is the Sybase home directory, defaults to /home/sybase. As of PHP 5.3.0, the Sybase extension has been superseded by the sybase_ct extension and is no longer maintained. To continue using sybase you must use the sybase_ct extension.