Actually, I think that currently I'd write your code like this 
my $ref_mail = shift;
my $db_write = @_ ? shift : 1;

[download]

That's icky, as it means more to change if there are ever more parameters than just these two. I'd suggest: 

my $ref_mail = shift;
my $db_write = defined $_[0] ? shift : 1;

[download]
<–radiant.matrix–>
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In reply to Re^2: Pass an optional parameter to a subroutine by radiantmatrix
in thread Pass an optional parameter to a subroutine by ocs

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