Symfony\Component\Config\Definition\Dumper\YamlReferenceDumper::writeArray PHP Method

    private function writeArray(array $array, $depth)
    {
        $isIndexed = array_values($array) === $array;
        foreach ($array as $key => $value) {
            if (is_array($value)) {
                $val = '';
            } else {
                $val = $value;
            }
            if ($isIndexed) {
                $this->writeLine('- ' . $val, $depth * 4);
            } else {
                $this->writeLine(sprintf('%-20s %s', $key . ':', $val), $depth * 4);
            }
            if (is_array($value)) {
                $this->writeArray($value, $depth + 1);
            }
        }
    }