Re: multiple array as hash value per key

[davorg]

The values in a hash can be any kind of scalar. To get the results that you want, each value would need to be a reference to an array, and each element in the referenced arrays would need to be another array reference.

%number = ( 23 => [ [ 'g1', 23, 24 ], [ 'g2', 34, 35 ] ],
            24 => [ [ 'g3', 45, 56 ], [ 'g4', 36, 48 ] ],
          );
$grp = $number{23}[0][0];

Note the I've corrected your hash-creating brackets from {} to ().

For more details see perldsc.

[Anonymous Monk]

in case i have new set of data (new array) referring to same key,is it possible to push the array value to the hash? eg :

new set is read from a file

while ($line <>){
($key,$value)=split(/,/,$line);
#suppose #line have 23,['g8',23,45]
push @{$numbers{23}},$value;
}

will this append the new array to existing key ?

[davorg]

What you're looking for is probably more like:

while (<>) {
  chomp;
  my ($key, @values) = split /,/, $_;
  push @{$numbers{$key}}, [ @values ];
}

When playing with complex data structures, perldsc and Data::Dumper are your friend.