subroutines, my and parentheses

[rent0n]

Hi all,

Can somebody please explain what is the difference between:
sub subroutine {
        my $var = @_;
        ...
        return 1;
}

and:

sub subroutine {
        my ($var) = @_;
        ...
        return 1;
}

I think it's something related to the context but I'm not completely 
sure. What I know is that to have the behaviour I want I have to declare 
the variable like in the second example (with parentheses).
This confuses me a bit because it's not the way I usually declare 
variables in my main program (that is, without parentheses).

Please assume I'm 5 years old.

Thanks,

--
rent0n

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