##
use Data::Dumper;
binmode STDOUT, ":utf8";
use PerlIO;
print Dumper [ PerlIO::get_layers \*STDOUT, output => 1 ];
__END__
$VAR1 = [
'unix',
'perlio',
'utf8'
];
####
use open qw/:std :utf8/;
use open OUT => ':encoding(UTF-8)', ':std';
####
$VAR1 = [
'unix',
'perlio',
'utf8',
'encoding(utf-8-strict)',
'utf8'
];