Update1:

Come back with some code (only breifly tested):

$a = [[[1,2],[2,3]], [[3,4],[4,5]], [[4,5],[5,6]]];
$b = [[[1,2],[2,3]], [[3,4],[4,5]], [[4,5],[5,6]]];

print is_array_equal($a, $b);

sub is_array_equal {
    my ($array1, $array2) = @_;
    if ($#array1 != $#array2) {
        return 0;
    } else {
        print "here\n";
        for (my $i = 0; $i <= $#{$array1}; $i ++) {
            print "there\n";
            if ((ref($array1->[$i]) eq "ARRAY") && (ref($array2->[$i])
+ eq "ARRAY")) {
                if (!is_array_equal($array1->[$i], $array2->[$i])) {
                    return 0;
                }
            } elsif (!ref($array1->[$i]) && !ref($array2->[$i])) {
                print "compare $array1->[$i] and $array2->[$i]\n";
                if ($array1->[$i] != $array2->[$i]) {
                    return 0;
                }
            } else {
                return 0;
            }
        }
    }
    return 1;
}
[download]

Original:

Looks like you are comparing three dimentional arrays.

What you can do is to write a function that calls itself recursively:

• First it compares number of elements, if not equal, then the two arrays are not equal, so return false;
• If number of elements are the same, then iterate thru all elements, for each pair:
  • If both elements are atomic, simply compare their values
  • If one is atomic , one is collection, no need to continue, return false
  • If both are collection, call this func recursively)

This would not only work for your three dimentional array, but array at any depth.

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