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As explained else where in the thread, that has the potential to not be unique.

It's a little known feature that Perl actually supports autoconcatenation of strings used as hash keys, joining them together using $;, which by default contains "\034" which is rare enough that it's unlikely unwanted duplicates are formed. So, you can write:

my @value = @{$Config{$value1,$value2,$value3,$value4,$value5}};
[download]

without having to join them yourself.

This was how people did multilevel hashes using perl4.

For more details, see the perlvar entry about $;.

In reply to Re: can i concatenate various value to form a unique key by JavaFan
in thread can i concatenate various value to form a unique key by Anonymous Monk

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