PMA\libraries\ListDatabase::checkOnlyDatabase PHP Метод

    protected function checkOnlyDatabase()
    {
        if (is_string($GLOBALS['cfg']['Server']['only_db']) && strlen($GLOBALS['cfg']['Server']['only_db']) > 0) {
            $GLOBALS['cfg']['Server']['only_db'] = array($GLOBALS['cfg']['Server']['only_db']);
        }
        if (!is_array($GLOBALS['cfg']['Server']['only_db'])) {
            return false;
        }
        $items = array();
        foreach ($GLOBALS['cfg']['Server']['only_db'] as $each_only_db) {
            // check if the db name contains wildcard,
            // thus containing not escaped _ or %
            if (!preg_match('/(^|[^\\\\])(_|%)/', $each_only_db)) {
                // ... not contains wildcard
                $items[] = Util::unescapeMysqlWildcards($each_only_db);
                continue;
            }
            $items = array_merge($items, $this->retrieve($each_only_db));
        }
        $this->exchangeArray($items);
        return true;
    }