protected function extractHash(DOMNode $configHash)
{
$hash = array();
foreach ($configHash->childNodes as $node) {
/** @var \DOMText|\DOMElement $node */
if ($node->nodeType === XML_ELEMENT_NODE) {
$hash[$node->getAttribute('key')] = $this->extractHash($node);
} elseif ($node->nodeType === XML_TEXT_NODE && !$node->isWhitespaceInElementContent()) {
return $node->wholeText;
}
}
return $hash;
}