Description:
------------
We agreed in a mailing list discussion that the example at 
http://docs.php.net/manual/en/locale.composelocale.php is 
very unreasonable:

$arr = array(
 'language' => 'en',
 'script'   => 'Hans',
 'region'   => 'CN',
 'variant2' => 'rozaj',
 'variant1' => 'nedis',
 'private1' => 'prv1',
 'private2' => 'prv2'
);
echo Locale::composeLocale($arr);

I may use private0, private1, ... private14?

How about

$arr = array(
 'language' => 'en',
 'script'   => 'Hans',
 'region'   => 'CN',
 'variants' => array(
   'rozaj',
   'nedis',
 ),
 'privates' => array(
   'prv1',
   'prv2',
 ),
);
echo Locale::composeLocale($arr);

Stas' reply:
"Nice idea, please add a feature request. Maybe even better 
would be to allow "private"/"variant" to be both string and 
array (now it can be only string)."