$VAR1 = [
          [
            '0',
            "\x{e4}\x{f6}\x{fc}\x{df}"
          ],
          [
            '1',
            "\x{c6}\x{bc}\x{ae}\x{a9}"
          ],
          [
            '2',
            "\x{126}\x{1fe}\x{1fa}\x{1fd}"
          ],
          [
            '3',
            'no unicode'
          ]
        ];
"Ƽ®©" - UTF8 
"no unicode" - ASCII