in reply to Dumper Won't print @_ ?

sub dbAction is prototyped to take a reference to an array; but you call it with an array (not a reference). Update: See the reply by AnomalousMonk below; also Prototypes.

Without the prototype:

#! perl
use strict;
use warnings;
use Data::Dumper;

my @params = qw(homer marge bart lisa maggie);
dbAction(@params);

sub dbAction
{
    print Dumper( @_), "\n";
    print Dumper(\@_);
}

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Outputs:

$VAR1 = 'homer';
$VAR2 = 'marge';
$VAR3 = 'bart';
$VAR4 = 'lisa';
$VAR5 = 'maggie';

$VAR1 = [
          'homer',
          'marge',
          'bart',
          'lisa',
          'maggie'
        ];

[download]

At least one of these is what you wanted?

HTH,

Athanasius <°(((>< contra mundum

Replies are listed 'Best First'.
Re^2: Dumper Won't print @_ ?
by AnomalousMonk (Archbishop) on Jul 30, 2012 at 14:03 UTC
    sub dbAction is prototyped to take a reference to an array; but you call it with an array (not a reference).

    Actually,  dbAction() is prototyped to take a single explicit array (i.e., something with a  @ sigil) as an argument and pass a reference to the array to the function. It will refuse to take an array reference, which is a scalar – won't even compile. 

    >perl -wMstrict -le
"use Data::Dump;
 ;;
 sub S (\@) {
   my ($array_ref) = @_;
   dd $array_ref;
   }
 ;;
 my @ra = (qw(foo bar baz), [ 1, 2, 3 ]);
 S(@ra);
"
["foo", "bar", "baz", [1, 2, 3]]

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