in reply to Passing an array of hashes to a subroutine

Data::Dumper is your friend.

Your passing syntax is fine - you just need to understand that what you have passed is a reference to an array of Hash-refs.

Your iteration "foreach my $d (@{$array_of_hashes})" aliases $d to a hashREF - which you need to de-reference.

try 

print $d->{one1} ; # De-reference $d, then use the key "one1" to get t
+he value

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