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As you probably know, we keep track of the Unicode function upgrade
progress at this URL:
http://www.php.net/~scoates/unicode/
Currently, most of the functions are marked as unsafe or untested.
However, there are plenty of extensions/functions that do not deal with
strings at all and thus can be marked as Unicode-safe. ext/bcmath is
one such example. Could people please go through and mark such
functions with 'U' at the end of the proto line? It would help a lot.
Thanks,
-Andrei