I'm trying to generate the backup of a course, but this is not generated with the files you have.
I'm using the following code:
$bc = new backup_controller(backup::TYPE_1COURSE, $template->id, backup::FORMAT_MOODLE,
backup::INTERACTIVE_NO, backup::MODE_IMPORT, $USER->id);
$backupid = $bc->get_backupid();
$backupbasepath = $bc->get_plan()->get_basepath();
$bc->execute_plan();
$bc->destroy();