I want to point out, that we should be aware of the difference in those two solutions:

The first solution will set $db to "", when the argument evaluates to FALSE.
This will happen, when the argument is undef, empty string or 0 [zero]).

So if undef and zero are wanted and valid values, the second solution should be used.

In reply to Re^2: passing a scalar to a function by linuxer
in thread passing a scalar to a function by nsupathy0

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