private function context_info($contextid)
{
global $DB;
$context = \context::instance_by_id($contextid, MUST_EXIST);
$out = '';
//var_dump($context);
if (is_a($context, "context_module")) {
/** @var \context_module $context */
$out .= "{$contextid}, module: " . $context->get_context_name();
}
return $out;
}