+ if (in_array($data['register_policy'], ['REGISTER_CLOSED', 'REGISTER_APPROVE', 'REGISTER_OPEN'])) {
+ $register_policy = constant($data['register_policy']);
+ } else {
+ Logger::log("Register policy '{$data['register_policy']}' from $server_url is invalid.");
+ $register_policy = REGISTER_CLOSED; // set a default value
+ }