PMA\libraries\dbi\DBIDummy::connect PHP Method

connects to the database server

public connect ( string $user, string $password, array $server = null ) : mixed
$user	string	mysql user name
$password	string	mysql user password
$server	array	host/port/socket/persistent
return	mixed	false on error or a mysqli object on success

    public function connect($user, $password, $server = null)
    {
        return true;
    }

DBIDummy