Don't go that road. Please. Done that, been there. It leads to unwanted things, in the widest sense of "unwanted". Really!
Symbolic reference (where the name of the hash/array/scalar is in a variable name) can always be made strict and safer by embedding it inside a hash:
my $hash_name = "platform_$site";
%$hash_name = ( key => $value );
:
my $value = ${$hash_name}{key};
=>
my %global_hash;
my $hash_name = "platform_$site";
$global_hash{$hash_name} = { key => $value };
:
my $value = $global_hash{$hash_name}{key};
Or - even better - go with jethro's suggestion to use multidimensional data structures.
Enjoy, Have FUN! H.Merijn
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