tl_page::getPageTypes PHP Method

    public function getPageTypes(DataContainer $dc)
    {
        $arrOptions = array();
        foreach (array_keys($GLOBALS['TL_PTY']) as $pty) {
            // Root pages are allowed on the first level only (see #6360)
            if ($pty == 'root' && $dc->activeRecord && $dc->activeRecord->pid > 0) {
                continue;
            }
            // Allow the currently selected option and anything the user has access to
            if ($pty == $dc->value || $this->User->hasAccess($pty, 'alpty')) {
                $arrOptions[] = $pty;
            }
        }
        return $arrOptions;
    }