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Yes, you can - if you are not using strict refs:
for my $element (qw/var1 var2 var3/) { %$element = ( a => 'b'); } print $var1{a};
The common practice, though, is to use one hash instead, making the elements of the list the keys. You can then shorten the creation to
my @array = qw(var1 var2 var3); my %hash; undef @hash{@array};
لսႽ ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Can I create hash dynamically by looping through an array? The hash name should be the array element by choroba
in thread Can I create hash dynamically by looping through an array? The hash name should be the array element by tomishere

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    [Corion]: Personally, I would do the decoding of data in the program and not in the filehandle
    [Corion]: ambrus: Maybe a record-based file where some data is strings encoded as utf8
    [Corion]: But again, I would read all data as binary and then decode from utf8
    [ambrus]: Corion: that wouldn't be my guess, but I'll wait for Dumu
    [Corion]: Meh. I'm now on Firefox 57 ("Quantum") and again have to remove Pocket, and reinstall the adblocker, uMatrix (because NoScript doesn't work) and silence the about:blank page to not download crap from the internet
    [Corion]: Maybe I shouldn't update software ...
    [ambrus]: Corion: my guess is to first read the start of the file to check what format it is out of two or more possibilities, then rewind it and handle it differently depending on the program
    [ambrus]: s/program/format/
    [Dumu]: ambrus: it's about testing a file for being multiple possible file formats
    [ambrus]: In particular, you might want to detect the encoding of a HTML file from between utf-16 versus ascii-based and encoding given in a META tag.

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