lib/components/db/behaviors/auditable/AuditDataProvider.php
protected function clearParams(&$params)
    {
        foreach ($params as $key => &$value) {
            if (is_array($value)) {
                $this->clearParams($value);
            } elseif ($value === '') {
                unset($params[$key]);
            }
        }
    }
protected function clearParams(&$params)
    {
        foreach ($params as $key => &$value) {
            if (is_array($value)) {
                $this->clearParams($value);
            } elseif ($value === '') {
                unset($params[$key]);
            }
        }
    }
[[@doctodo method_description:clearParams]].

@param [[@doctodo param_type:params]] $params [[@doctodo param_description:params]]