If you want to perform this check once per row, you could loop though the arrays:

use strict;
use warnings;

my @one     = qw(5 6 7);
my @two     = qw(1 2 0);
my @three   = qw(1 1 1);
my @four    = qw(9 4 6);
for my $i (0 .. $#one) {
    unless ($one[$i] and $two[$i] and $three[$i] and $four[$i]) {
        print "row $i has a zero\n"; # execute some code
    }
}
[download]

prints:

row 2 has a zero
[download]

Update: You should consider reorganizing your data as an ARRAYS OF ARRAYS structure, if you have control over your data. In general, it is easier passing around one data structure than 4.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.