(Embedded in another script) Pass in a ReadOnly Flag or an Admin Flag

[cr750]

I have a very basic PHP application in which I've embedded TinyFileManger. My application uses a $_SESSION variable which contains one of 5 user authority levels within the application. I want to pass the authority level into TinyFileManager as a UserName so that low authority level User (1, 2, or 3) has ReadOnly access and those with a high authority level (4 and 5).

I have set up 5 users in the tinyfilemanager.php and set 1, 2, and 3 as ReadOnly Users and altered these lines -

// always use ?p=
if (!isset($_GET['p']) && empty($_FILES)) {
//    fm_redirect(FM_SELF_URL . '?p=');
    fm_redirect(FM_SELF_URL . '?p=&username='. $_SESSION['auth_lvl']);
}

But that does not seem to have the desired effect.