I'd be happy if it stayed like it is, for backwards compatibility. If
not, then there needs to be some reasonably straightforward way for an
app to work out how PHP has messed up its input so that it can put it
back together (compare get_magic_quotes_gpc()).
In any case, it could be better documented. I see it is documented in
these places:
Hi,
I look at this feature more as a broken compatibility with HTTP, since
there's data lost from otherwise valid field names on the way from the
server to PHP's userland.
Since the bigger feature in question (register_globals) is removed, people
who use the underscore filter with register_globals have already lost
backwards compatibility.
For those who want to *emulate* register_globals with extract(), they can
easily emulate the underscore filter as well (it's 3 lines of code).
Regards,
Stan Vassilev
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