elFinder\elFinder::upload PHP Method

    protected function upload($args)
    {
        $target = $args['target'];
        $volume = $this->volume($target);
        $files = isset($args['FILES']['upload']) && is_array($args['FILES']['upload']) ? $args['FILES']['upload'] : array();
        $result = array('added' => array(), 'header' => empty($args['html']) ? false : 'Content-Type: text/html; charset=utf-8');
        if (empty($files)) {
            return array('error' => $this->error(self::ERROR_UPLOAD, self::ERROR_UPLOAD_NO_FILES), 'header' => $header);
        }
        if (!$volume) {
            return array('error' => $this->error(self::ERROR_UPLOAD, self::ERROR_TRGDIR_NOT_FOUND, '#' . $target), 'header' => $header);
        }
        foreach ($files['name'] as $i => $name) {
            if (($error = $files['error'][$i]) > 0) {
                $result['warning'] = $this->error(self::ERROR_UPLOAD_FILE, $name, $error == UPLOAD_ERR_INI_SIZE || $error == UPLOAD_ERR_FORM_SIZE ? self::ERROR_UPLOAD_FILE_SIZE : self::ERROR_UPLOAD_TRANSFER);
                $this->uploadDebug = 'Upload error code: ' . $error;
                break;
            }
            $tmpname = $files['tmp_name'][$i];
            if (($fp = fopen($tmpname, 'rb')) == false) {
                $result['warning'] = $this->error(self::ERROR_UPLOAD_FILE, $name, self::ERROR_UPLOAD_TRANSFER);
                $this->uploadDebug = 'Upload error: unable open tmp file';
                break;
            }
            if (($file = $volume->upload($fp, $target, $name, $tmpname)) === false) {
                $result['warning'] = $this->error(self::ERROR_UPLOAD_FILE, $name, $volume->error());
                fclose($fp);
                break;
            }
            fclose($fp);
            $result['added'][] = $file;
        }
        return $result;
    }