/**
* Exclude elements with the same keys from input $data
*
* @param array $data
*/
public function differ($data)
{
$data instanceof self && ($data = $data->toArray());
$storage = $this->toArray();
$this->exchangeArray(array_diff_key_recursive($storage, $data));
}
function array_diff_key_recursive($array1, $array2)
{
foreach ($array1 as $key => $value) {
if (is_array($value) && array_key_exists($key, $array2)) {
$result[$key] = array_diff_key_recursive($array1[$key], $array2[$key]);
} else {
if (is_array($value)) {
$result[$key] = $array1[$key];
} else {
$result = array_diff_key($array1, $array2);
}
}
if (is_array($result) && isset($result[$key]) && is_array($result[$key]) && count($result[$key]) == 0) {
unset($result[$key]);
}
}
return $result;
}