ExpressiveInstaller\OptionalPackages::askQuestion PHP Метод

    private static function askQuestion(Composer $composer, IOInterface $io, $question, $defaultOption)
    {
        // Construct question
        $ask = [sprintf("\n  <question>%s</question>\n", $question['question'])];
        $defaultText = $defaultOption;
        foreach ($question['options'] as $key => $option) {
            $defaultText = $key === $defaultOption ? $option['name'] : $defaultText;
            $ask[] = sprintf("  [<comment>%d</comment>] %s\n", $key, $option['name']);
        }
        if ($question['required'] !== true) {
            $ask[] = "  [<comment>n</comment>] None of the above\n";
        }
        $ask[] = $question['custom-package'] === true ? sprintf("  Make your selection or type a composer package name and version <comment>(%s)</comment>: ", $defaultText) : sprintf("  Make your selection <comment>(%s)</comment>: ", $defaultText);
        while (true) {
            // Ask for user input
            $answer = $io->ask($ask, $defaultOption);
            // Handle none of the options
            if ($answer == 'n' && $question['required'] !== true) {
                return 'n';
            }
            // Handle numeric options
            if (is_numeric($answer) && isset($question['options'][(int) $answer])) {
                return (int) $answer;
            }
            // Search for package
            if ($question['custom-package'] === true && preg_match(self::PACKAGE_REGEX, $answer, $match)) {
                $packageName = $match['name'];
                $packageVersion = $match['version'];
                if (!$packageVersion) {
                    $io->write("<error>No package version specified</error>");
                    continue;
                }
                $io->write(sprintf("  - Searching for <info>%s:%s</info>", $packageName, $packageVersion));
                $optionalPackage = $composer->getRepositoryManager()->findPackage($packageName, $packageVersion);
                if (!$optionalPackage) {
                    $io->write(sprintf("<error>Package not found %s:%s</error>", $packageName, $packageVersion));
                    continue;
                }
                return sprintf('%s:%s', $packageName, $packageVersion);
            }
            $io->write("<error>Invalid answer</error>");
        }
        return false;
    }