<?php
require_once 'vendor/autoload.php';
use Symfony\Component\Console\Helper\SymfonyQuestionHelper;

use Symfony\Component\Console\Input\ArgvInput;
use Symfony\Component\Console\Output\ConsoleOutput;
use Symfony\Component\Console\Question\ChoiceQuestion;

$in = new ArgvInput();
$out = new ConsoleOutput();
$dialog = new SymfonyQuestionHelper();

$heroes = ['Русский' => 'russian', 'żółw' => 'bar', 'super' => 'Superman'];
$question = new ChoiceQuestion('What is your favorite superhero?', $heroes, 'super');
$question->setMultiselect(true);
$res = $dialog->ask($in, $out, $question);