think\console\output\driver\Console::getSttyColumns PHP Метод

    private function getSttyColumns()
    {
        if (!function_exists('proc_open')) {
            return null;
        }
        $descriptorspec = [1 => ['pipe', 'w'], 2 => ['pipe', 'w']];
        $process = proc_open('stty -a | grep columns', $descriptorspec, $pipes, null, null, ['suppress_errors' => true]);
        if (is_resource($process)) {
            $info = stream_get_contents($pipes[1]);
            fclose($pipes[1]);
            fclose($pipes[2]);
            proc_close($process);
            return $info;
        }
        return null;
    }