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The version with sqlite_fetch_all($res, SQLITE_NUM) did not work in my setup:
PHP 5.3.10
DokuWiki Adora Belle
data plugin released at 2013-02-06
That means, that it always printed "Nothing." instead of the actual list. The call to sqlite_fetch_all returned NULL.
Replacing that one line by the object oriented style $res->fetchAll(SQLITE_NUM) made it work for me.
Hope it doesn't break other installations.