tinymce-editor/Application/fileman/php/dirtree.php

<?php
/*
  RoxyFileman - web based file manager. Ready to use with CKEditor, TinyMCE. 
  Can be easily integrated with any other WYSIWYG editor or CMS.

  Copyright (C) 2013, RoxyFileman.com - Lyubomir Arsov. All rights reserved.
  For licensing, see LICENSE.txt or http://RoxyFileman.com/license

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

  Contact: Lyubomir Arsov, liubo (at) web-lobby.com
*/
include '../system.inc.php';
include 'functions.inc.php';

verifyAction('DIRLIST');
checkAccess('DIRLIST');

/**
 * @param string $path
 * @param string $type
 * @return int[]
 */
function getFilesNumber(string $path, string $type): array
{
    $files = 0;
    $dirs = 0;
    $tmp = listDirectory($path);
    foreach ($tmp as $ff) {
        if ($ff == '.' || $ff == '..') {
            continue;
        } elseif (
            is_file($path . '/' . $ff) &&
            ($type == '' || ($type == 'image' && RoxyFile::IsImage($ff)) || ($type == 'flash' && RoxyFile::IsFlash($ff)))
        ) {
            $files++;
        } elseif (is_dir($path . '/' . $ff)) {
            $dirs++;
        }
    }

    return array('files' => $files, 'dirs' => $dirs);
}

function GetDirs(string $path, string $type): void
{
    $ret = $sort = array();
    $files = listDirectory(fixPath($path));
    foreach ($files as $f) {
        $fullPath = $path . '/' . $f;
        if (!is_dir(fixPath($fullPath)) || $f == '.' || $f == '..') {
            continue;
        }
        $tmp = getFilesNumber(fixPath($fullPath), $type);
        $ret[$fullPath] = array('path' => $fullPath, 'files' => $tmp['files'], 'dirs' => $tmp['dirs']);
        $sort[$fullPath] = $f;
    }
    natcasesort($sort);
    foreach ($sort as $k => $v) {
        $tmp = $ret[$k];
        echo ',{"p":"' . mb_ereg_replace('"', '\\"', $tmp['path']) . '","f":"' . $tmp['files'] . '","d":"' . $tmp['dirs'] . '"}';
        GetDirs($tmp['path'], $type);
    }
}

$type = (empty($_GET['type']) ? '' : strtolower($_GET['type']));
if ($type != 'image' && $type != 'flash') {
    $type = '';
}

echo "[\n";
$tmp = getFilesNumber(fixPath(getFilesPath()), $type);
echo '{"p":"' . mb_ereg_replace('"', '\\"', getFilesPath()) . '","f":"' . $tmp['files'] . '","d":"' . $tmp['dirs'] . '"}';
GetDirs(getFilesPath(), $type);
echo "\n]";