yf_dynamic_assets user module

    public function asset($type = '', $exit = true)
    {
        session_write_close();
        no_graphics(true);
        $type = strtolower(preg_replace('~[^a-z0-9_-]+~ims', '', trim($type ?: ($_GET['page'] ?? ''))));
        $out = $this->asset_content($_GET['id'] ?? '', $type);
        if ($out === null) {
            _404();
            if ($exit) {
                exit();
            }
            return '';
        }
        $now = time();
        $max_age = 3600;
        if ( ! headers_sent()) {
            header('Content-Type: ' . ($type === 'css' ? 'text/css' : 'text/javascript'));
            header('Content-Length: ' . strlen($out));
            header('Cache-Control: max-age=3600, must-revalidate');
            header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', $now + $max_age));
            header('Last-Modified: ' . gmdate('D, d M Y H:i:s \G\M\T', $now));
            header('X-Robots-Tag: noindex,nofollow,noarchive,nosnippet');
            header_remove('Pragma');
            header_remove('Set-Cookie');
        }

        echo $out;
        if ($exit) {
            exit;
        }
        return $out;
    }

    public function asset_content($id, $type)
    {
        $name = strtolower(preg_replace('~[^a-z0-9_-]+~ims', '', trim(is_scalar($id) ? (string) $id : '')));
        if ( ! strlen($name) || ! in_array($type, ['css', 'js', 'jquery', 'ng'], true)) {
            return null;
        }
        $class_assets = _class('assets');
        if ( ! $class_assets->get_asset_details($name)) {
            return null;
        }
        $asset_type = $type === 'css' ? 'css' : 'js';
        $content = (array) $class_assets->get_asset($name, $asset_type);
        if (isset($content['content'])) {
            $content = [$content];
        }
        $out = [];
        foreach ($content as $v) {
            if (is_array($v)) {
                $v = $v['content'] ?? '';
            }
            if ( ! is_string($v) || ! strlen($v)) {
                continue;
            }
            $ctype = $class_assets->detect_content_type($asset_type, $v);
            $_out = '';
            if ($ctype === 'inline') {
                $_out = $v;
            } elseif ($ctype === 'file') {
                $_out = (string) file_get_contents($v);
            } elseif ($ctype === 'url') {
                $_out = (string) $class_assets->_url_get_contents(substr($v, 0, 2) === '//' ? 'https:' . $v : $v);
            }
            if (DEBUG_MODE) {
                $out[] = '/* DEBUG: asset: ' . $name . ', type: ' . $type . ', ctype: ' . $ctype . ', length: ' . strlen($_out) . ', src: ' . str_replace('*/', '', substr($v, 0, 200)) . ' */';
            }
            $out[] = $_out;
        }
        return implode(PHP_EOL . PHP_EOL, $out);
    }

    public function asset_css()
    {
        return $this->asset('css');
    }

    public function asset_jquery()
    {
        return $this->asset('jquery');
    }

    public function asset_js()
    {
        return $this->asset('js');
    }

    public function asset_ng()
    {
        return $this->asset('ng');
    }

    public function __call($name, $arguments)
    {
        trigger_error(__CLASS__ . ': No method ' . $name, E_USER_WARNING);
        return false;
    }

    public function __construct()
    {
        $this->_parent = module('dynamic');
    }