Nothing to do with your original question, but you can do the following rewrite 
# Exactly equivalent drop-in replacement
sub get_my_params {
    map { defined param( $_ ) ? param( $_ ) : '' } qw(
        ticket title client next_step o_date o_time
    );
}

[download]
However, better would be to rewrite it as 
# Returns a hash, not an array
sub get_my_params {
    map { $_ => defined param( $_ ) ? param( $_ ) : '' } qw(
        ticket title client next_step o_date o_time
    );
}

# Use this one as so:
my %params = get_my_params();

if ( $params{ title } ne '' ) {
    # Do stuff here.
}

[download]
The use of a hash is better because you can add new parameters to get_my_params() and the only thing that changes is the new code you add. You don't need to keep track of a bazillion parameter names.

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Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.

In reply to Re: Scalar evaluation by dragonchild
in thread Scalar evaluation by mhearse

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