$opts = array(
    'debug' => true,
    'roots' => array(
        array(
            'driver'        => 'LocalFileSystem',           // driver for accessing file system (REQUIRED)
            'path'          => '../files/',                 // path to files (REQUIRED)
            'URL'           => dirname($_SERVER['PHP_SELF']) . '/../files/', // URL to files (REQUIRED)
            'uploadDeny'    => array('all'),                // All Mimetypes not allowed to upload
            'uploadAllow'   => array('image', 'text/plain'),// Mimetype `image` and `text/plain` allowed to upload
            'uploadOrder'   => array('deny', 'allow'),      // allowed Mimetype `image` and `text/plain` only
            'accessControl' => 'access',                    // disable and hide dot starting files (OPTIONAL)
            'attributes' => array(
                array(
                    'pattern' => '/^.IT/LockedFolder/', //You can also set permissions for file types by adding, for example, .jpg inside pattern.
                    'read'    => true,
                    'write'   => false,
                    'locked'  => true,
                )
            )
        )
    )
);

// run elFinder
$connector = new elFinderConnector(new elFinder($opts));
$connector->run();

'pattern' => '/^.IT/',

user_id | folder_name     | read  | write | locked
1       | IT              | true  | false | true
2       | IT/LockedFolder | false | false | false