function scan($dir)
{
    $accessableFiles = dbClass::getAccessableFiles($_COOKIE['userId']);
    $folder = [];
    foreach ($accessableFiles as $index => $code) {
        if (strpos($code['file'], '/') !== false) {
            $code['file'] = explode('/', $code['file'])[1];
        }
        $folder[] = $code['file'];
    }
    $files = array();
    // Is there actually such a folder/file?
    if (file_exists($dir)) {
        $allowedFolder = $accessableFiles[0]['file'];
        foreach (scandir($dir) as $f) {
            if (!$f || $f[0] == '.') {
                continue;
                // Ignore hidden files
            }
            if (is_dir($dir . '/' . $f)) {
                // The path is a folder
                for ($i = 0; $i < count($folder); $i++) {
                    if ($f == $folder[$i]) {
                        $files[] = array("name" => $f, "type" => "folder", 'checked' => false, "path" => $dir . '/' . $f, "items" => scan($dir . '/' . $f));
                    }
                }
            } else {
                // It is a file
                $files[] = array("name" => $f, "type" => "file", 'checked' => false, "path" => $dir . '/' . $f, "size" => filesize($dir . '/' . $f));
            }
        }
    }
    return $files;
}
 function create_tree()
 {
     if (count($this->files) > 2) {
         /* First 2 entries are . and ..  -skip them */
         natcasesort($this->files);
         $list = '<ul class="filetree" style="display: none;">';
         if (isset(explode('=', $_SERVER['HTTP_REFERER'])[1])) {
             $id = explode('=', $_SERVER['HTTP_REFERER'])[1];
             $files = dbClass::getAccessableFiles($id);
             $filesNeedsToBeChecked = [];
             foreach ($files as $fl) {
                 $filesNeedsToBeChecked[] .= $fl['file'];
             }
             foreach ($this->files as $file) {
                 if (file_exists($this->folder . $file) && $file != '.' && $file != '..' && is_dir($this->folder . $file)) {
                     $fls = str_replace('/', '', explode('../../files/', $this->folder)[1]);
                     if (in_array($file, $filesNeedsToBeChecked)) {
                         $list .= '<li class="folder collapsed checkAll"><input type="checkbox" checked name="file[]" value="' . $this->folder . $file . '" class="left"><a href="#" rel="' . htmlentities($this->folder . $file) . '/">' . htmlentities($file) . '</a></li>';
                     } else {
                         $list .= '<li class="folder collapsed checkAll"><input type="checkbox" name="file[]" value="' . $this->folder . $file . '" class="left"><a href="#" rel="' . htmlentities($this->folder . $file) . '/">' . htmlentities($file) . '</a></li>';
                     }
                 }
             }
             // Group all files
             foreach ($this->files as $file) {
                 if (file_exists($this->folder . $file) && $file != '.' && $file != '..' && !is_dir($this->folder . $file)) {
                     $ext = preg_replace('/^.*\\./', '', $file);
                     $fls = $this->folder . $file;
                     $fls = explode('../../files/', $fls)[1];
                     if (in_array($fls, $filesNeedsToBeChecked)) {
                         $list .= '<li class="file ext_' . $ext . '"><a for="' . $file . '" rel="' . htmlentities($this->folder . $file) . '">' . htmlentities($file) . '</a></li>';
                     } else {
                         $list .= '<li class="file ext_' . $ext . '"><a for="' . $file . '" rel="' . htmlentities($this->folder . $file) . '">' . htmlentities($file) . '</a></li>';
                     }
                 }
             }
         } else {
             // Group folders first
             foreach ($this->files as $file) {
                 if (file_exists($this->folder . $file) && $file != '.' && $file != '..' && is_dir($this->folder . $file)) {
                     $list .= '<li class="folder collapsed checkAll"><input type="checkbox" name="file[]" value="' . $this->folder . $file . '" class="left"><a href="#" rel="' . htmlentities($this->folder . $file) . '/">' . htmlentities($file) . '</a></li>';
                 }
             }
             // Group all files
             foreach ($this->files as $file) {
                 if (file_exists($this->folder . $file) && $file != '.' && $file != '..' && !is_dir($this->folder . $file)) {
                     $ext = preg_replace('/^.*\\./', '', $file);
                     $list .= '<li class="file ext_' . $ext . '"><a for="' . $file . '" rel="' . htmlentities($this->folder . $file) . '">' . htmlentities($file) . '</a></li>';
                 }
             }
         }
         $list .= '</ul>';
         return $list;
     }
 }
<?php

require_once '../../classes/dbClass.php';
require_once '../../helpers/security.php';
if (isset($_GET['id'])) {
    $id = $_GET['id'];
    $values = dbClass::getPasswordById($id);
    $folders = dbClass::getAccessableFiles($values['id']);
    if (dbClass::savePassword($values['name'], $values['password'])) {
        $pwdId = dbClass::getLastPasswordId()['id'];
        foreach ($folders as $fl) {
            $filename = array_pop(explode('/', $fl['file']));
            if (dbClass::query('INSERT INTO files (password_id, file) VALUES ("' . $pwdId . '", "' . $filename . '")')) {
                header('Location: index.php');
            } else {
                header('Location: index.php');
            }
        }
    } else {
        header('Location: index.php');
    }
    var_dump($values);
}