Three problems.

First, $d doesn't contain what you think it does, whatever that is. 

   foreach my $d (@{$array_of_hashes}) {
    print $d[0]{'one1'};    
   }

[download]

It contains the element at each index of the array (in turn). In other words, it contains a reference to a hash. Fix: 

   foreach my $h (@{$array_of_hashes}) {
    print $h->{'one1'};    
   }

[download]

Secondly, you reference the array @array_of_hashes even though no such array exists. 

    print $array_of_hashes[0]{'one1'};    
    print $array_of_hashes[0]{'one2'};    
    print $array_of_hashes[1]{'two1'};    
    print $array_of_hashes[1]{'two2'};

[download]

Had you used use strict as you should, you would have gotten an error. Fix: 

    print $array_of_hashes->[0]{'one1'};    
    print $array_of_hashes->[0]{'one2'};    
    print $array_of_hashes->[1]{'two1'};    
    print $array_of_hashes->[1]{'two2'};

[download]

See References Quick Reference.

Finally, your array contains two references to the same hash. 

my %hash;
my @array;
...
push @array, \%hash;
...
push @array, \%hash;

[download]

Fix: 

my @array;
{
   my %hash;
   ...
   push @array, \%hash;
}
{
   my %hash;
   ...
   push @array, \%hash;
}

[download]

In reply to Re: Passing an array of hashes to a subroutine by ikegami
in thread Passing an array of hashes to a subroutine by Anonymous Monk

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