PHP locale issue on Dragonfly BSD

Good day

I've a big issue with PHP:
PHP 5.4.16 (cli) (built: Jul 19 2013 20:22:43)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies

on an Dragonfly BSD System - uname -a:
DragonFly serve-one.bsj-beschichtungs-systeme.de 3.5-DEVELOPMENT
DragonFly v3.5.0-DEVELOPMENT #0: Mon Jun 10 14:35:23 CEST 2013
[email protected]:/usr/obj/usr/src/sys/X86_64_GENERIC
 x86_64

The thing is, whatever Im doing - I cannot get the german (de_DE) locale
like by using nl_langinfo() or localeconv().
setlocale() actually works but it doesnt change a thing, thus does not
become effective.

regards,
Georg