TYPO3: PersistenceManager: Own query ordering

# Do your manual sorting after result set is retrieved
# I'm using this on my API response which did not have a sorting possibility

$orderings = $query->getOrderings();
if (!empty($orderings) && $results && count($results) > 1) {
    usort($results, function ($a, $b) use ($orderings) {
        $t = array(TRUE => -1, FALSE => 1);
        $r = TRUE;
        $k = 1;

        foreach ($orderings as $key => $direction) {
            $k = (strtolower($direction) === 'asc') ? 1 : -1;
            $key = \TYPO3\CMS\Core\Utility\GeneralUtility::camelCaseToLowerCaseUnderscored($key);

            $r = ($a[$key] < $b[$key]);
            if ($a[$key] !== $b[$key]) {
                return $t[$r] * $k;
            }
        }
        return $t[$r] * $k;
    });
}