if ($refresh) {
$config = DBA::selectFirst('pconfig', ['v'], ['uid' => $uid, 'cat' => $cat, 'k' => $k]);
if ($refresh) {
$config = DBA::selectFirst('pconfig', ['v'], ['uid' => $uid, 'cat' => $cat, 'k' => $k]);
self::getApp()->setPConfigValue($uid, $cat, $k, $config['v']);
} else {
self::getApp()->deletePConfigValue($uid, $cat, $k);
self::getApp()->setPConfigValue($uid, $cat, $k, $config['v']);
} else {
self::getApp()->deletePConfigValue($uid, $cat, $k);