Dear Masters,
I have three arrays @arA; @arB; @arC;. What I intend to do is for every element of @arA; I would like to check it against element of @arB; and @arC;. I know that I can do it in two loops like this: 
#!/usr/bin/perl -w
use Data::Dumper;

my @arA = qw( lion tiger dog cat snake);
my @arB = qw( tiger dragon lion);
my @arC = qw(dog phoenix);

my %all;

foreach my $elA (@arA) {
   foreach my $elB (@arB) {

    if ($elA eq $elB) {
     
       push @{$all{$elA}}, $elB." - from Array B";
    }

   }
}

foreach my $elA (@arA) {
   foreach my $elC (@arC) {

    if ($elA eq $elC) {
     
       push @{$all{$elA}}, $elC ." - from Array C";
    }

   }
}

print Dumper \%all;
# Then do other thing with %all

[download]
I can only think of achieving that in two separate foreach block for A (one with B, another with C). Is there a way we can construct that with single loop (meaning even with B and C in single loop with A)? Any CPAN module that can help us with it?

Note also that there can be more array (D, E, F, ...) which we need to check for Array A.

---
neversaint and everlastingly indebted.......

In reply to Selective Check of Multiple Arrays With Single Construct by neversaint

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