UPDATE: Ignore this... I'm not sure how I missed that you were pointing out the bad example of how not to use @_.

You are passing @_ as the third argument to send_status_email followed by \@array2. Since @_ contains two items and send_status_email is expecting a scalar for the third argument, the second item in @_ is going into $ar_attachments. Here is one way to fix that:

use strict;
use warnings;

my @array1 = ( "this is a line\n", "this is a second line");
my @array2 = qw( one two three);

sub1 ( @array1 );

sub sub1 {
    send_status_email( 'xxx@yy.com', 'subject', \@_, \@array2);
}

sub send_status_email {

    my ($to_address, $status, $message, $ar_attachments ) = @_;
    print "To:     $to_address\n";
    print "Status: $status\n";
    my $body = join '', @$message;
    print "Message <$body>\n";
    foreach ( @$ar_attachments ) {
        print "ar: $_\n";
    }
    print "***************** sub finished\n";
}

__END__
To:     xxx@yy.com
Status: subject
Message <this is a line
this is a second line>
ar: one
ar: two
ar: three
***************** sub finished

[download]

In reply to Re^3: Why are list items passed to die() combined into a string? by Mr. Muskrat
in thread Why are list items passed to die() combined into a string? by Lotus1

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