I suspect this is an XY Problem, but you can do this using Symbolic references. This will not work with strict refs in place (you do use strict, right?), so your code might look like 
my $x = 'Foo';

my $sub_ref = do {
    no strict 'refs';
    \&{$x};
};

[download]
 so your code might look like 
my $x = 'Foo';

my $sub_ref = \&{$x};

[download]
Update: It appears my $sub_ref = \&{'Foo'}; passes strict when &{'Foo'}; does not. Huh?

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re: Sub ref from string without eval by kennethk
in thread Sub ref from string without eval by lackita

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