strict complains if it has either no scoping or a scoping of
local.
my gives you nice, neat lexical scoping.
our gives you a funky lexically-scoped global-type-thingy which I'm not fully conversant with, but works relatively well.
If you're going to create a function to get/set this variable, do something like:
my $var = 0;
sub get_var {
return $var;
}
sub set_var {
my ($new_val) = @_;
# Do some checks on $new_val here.
$var = $new_val;
return $var;
}
The reason you have it scoped with my is to keep it protected as much as possible from accidental clobbering.
(Of course, you could just put yourself into that namespace, but that's just being silly.)
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