hmm...
about it being used in following expression points to same thing les was talking about.
about using $-sign in expression or string...
which then is also bad coding, something that manual is against and as so wrong.
when used as null pointer, it's just undocumented not wrong.

am I right?
and even thou I might not be, I could throw my 300cent(meter)s...

sjdhjklyf,
_________________________
!

download KiXnet