protected function doSerialize($var, Normalizers $handlers, array $state = array(), array $classes = array())
{
if (is_object($var)) {
$class = get_class($var);
$handler = $handlers->getHandler($class);
if (null === $handler) {
throw new \RuntimeException(sprintf('No serialization handler for class %s!', $class));
}
$hash = spl_object_hash($var);
$classes[] = get_class($var);
if (isset($state[$hash])) {
throw new \RuntimeException('Nesting cycle: ' . implode(' -> ', $classes));
}
$state[$hash] = 1;
return $this->doSerialize(call_user_func_array($handler, array($var)), $handlers, $state, $classes);
}
if (is_array($var)) {
$return = array();
foreach ($var as $key => $value) {
$return[$key] = $this->doSerialize($value, $handlers, $state, $classes);
}
return $return;
}
return $var;
}
private function serializeValue($var, Normalizers $normalizers, $doc, $parent, $key, array $state = array(), array $classes = array())
{
/** @var \DOMDocument|\DOMElement $doc */
/** @var \DOMDocument|\DOMElement $parent */
if (is_object($var)) {
$handler = $normalizers->getHandler(get_class($var));
$arr = $handler($var);
$hash = spl_object_hash($var);
$classes[] = get_class($var);
if (isset($state[$hash])) {
throw new \RuntimeException('Nesting cycle: ' . implode(' -> ', $classes));
}
$state[$hash] = 1;
$this->doSerialize($arr, $normalizers, $doc, $parent, $normalizers->getRoot(get_class($var)), $state, $classes);
return;
}
if (is_array($var)) {
$item = $key ? $doc->createElement($key) : $parent;
foreach ($var as $index => $value) {
$this->doSerialize($value, $normalizers, $doc, $item, $index, $state, $classes);
}
!$key ?: $parent->appendChild($item);
return;
}
$parent->appendChild($doc->createElement($key, $var));
}