If you're planning on working with data being provided by an untrusted source (e.g. a CGI script), be very careful about blindly evaluating strings, as it's not hard to craft something rather malicious.

An alternative would be to do the interpolation by hand: 

no strict 'refs';  # You are using strict, yes?
for (@array) {
   s/\$(\w+)/${$1}/eg;
}

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You could even go so far as to force the variables to come from a specific package, by using, say, ${"${package}::$1"}. That should keep them out of your regular name space.

In reply to A note about security by Fastolfe
in thread variable interpolation from a filehandle by ikitat

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