Well, as an aside ... if you pass that many parameters to a subroutine, have you considered using a hash and using name => value pairs? That would greatly reduce the risk of errors and makes all these variable declarations unnecessary ...
I was thinking of something like the following ... suitably adjusted to your concrete requirements of course (are all parameters necessary, should they get a default value if not given, ...)
# call the sub
my_sub(userid => 'foo', password => 'bar');
sub my_sub {
my %default_values = (userid => 'user', password => 'passwd');
my %param = (%default_values, @_);
print $param{userid}, $/;
print $param{password}, $/;
# ...
}
# or with all required arguments
sub my_sub {
my @required = qw/userid password/;
my %param = @_;
for my $req (@required) {
die "Subroutine my_sub called without required parameter: $req"
unless exists $param{$req};
}
print $param{userid}, $/;
print $param{password}, $/;
# ...
}
-- Hofmator
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