탐색할 디렉토리의 깊이는 두 번째 매개 변수(정수)를 사용합니다.
기본 값은 `1`이며 최상위 디렉토리만 매핑합니다.

$mydirectory = 'vfs://root';

directory_map($mydirectory, 1);
=> Array
(
    [0] => Helper/
    [1] => Tutorial/
    [2] => Library/
    [3] => Incomming/
    [4] => Model/
    [5] => Sample/
    [6] => Refactoring/
    [7] => Home.php
    [8] => Response/
    [9] => Controller/
    [10] => Filters/
    [11] => Routing/
    [12] => Cli/
    [13] => Database/
    [14] => Ci4lab/
    [15] => BaseController.php
)

기본적으로 숨김(hidden) 파일과 숨김 디렉토리는 건너뜁니다.
세 번째 매개 변수를 `true`로 설정하면 숨긴 파일과 디렉토리도 가져옵니다.

$mydirectory = 'vfs://root';

directory_map($mydirectory, false, true);
=> Array
(
    [Helper/] => Array
        (
            [Arr/] => Array
                (
                    [0] => Exam4.php
                    [1] => Home.php
                    [2] => Exam2.php
                    [3] => Exam1.php
                    [4] => Exam3.php
                )

            [Date/] => Array
                (
                    [0] => Home.php
                    [1] => Exam.php
                )

            [Cookie/] => Array
                (
                    [0] => Home.php
                    [1] => Exam1.php
                )

            [Filesys/] => Array
                (
                    [0] => Exam6.php
                    [1] => Exam4.php
                    [2] => Home.php
                    [3] => Exam2.php
                    [4] => Exam5.php
                    [5] => Exam1.php
                    [6] => Exam3.php
                )

        )

    [Tutorial/] => Array
        (
            [0] => News2.php
            [1] => News3.php
            [Page/] => Array
                (
                    [0] => Home.php
                )

            [2] => Pages2.php
            [3] => Home.php
            [4] => News1.php
            [5] => Pages1.php
        )

    [Library/] => Array
        (
            [Curl/] => Array
                (
                    [0] => Home.php
                )

            [Pagination/] => Array
                (
                    [0] => Exam6.php
                    [1] => Exam4.php
                    [2] => Home.php
                    [3] => Exam2.php
                    [4] => Exam5.php
                    [5] => Exam1.php
                    [6] => Exam3.php
                )

            [Validation/] => Array
                (
                    [0] => Exam4.php
                    [1] => Home.php
                    [2] => Exam2.php
                    [3] => Exam1.php
                    [4] => Exam3.php
                )

        )

    [Incomming/] => Array
        (
            [0] => Header.php
            [1] => GetFilter.php
            [2] => Url.php
            [3] => Home.php
            [4] => GetInput.php
            [5] => UserController.php
            [6] => Upload.php
            [7] => ReqType.php
        )

    [Model/] => Array
        (
            [Entity/] => Array
                (
                    [0] => Home.php
                    [1] => Exam2.php
                    [2] => Exam1.php
                    [3] => Exam3.php
                )

            [Cimodel/] => Array
                (
                    [0] => Delete.php
                    [1] => Save.php
                    [2] => Home.php
                    [3] => SoftDelete.php
                    [4] => Find.php
                )

            [Pagination/] => Array
                (
                    [0] => Exam4.php
                    [1] => Home.php
                    [2] => Exam2.php
                    [3] => Exam1.php
                    [4] => Exam3.php
                )

            [Validation/] => Array
                (
                    [0] => Home.php
                    [1] => User.php
                )

            [Event/] => Array
                (
                    [0] => Home.php
                    [1] => ModelEvent.php
                )

        )

    [Sample/] => Array
        (
            [0] => Home.php
        )

    [Refactoring/] => Array
        (
            [Basic/] => Array
                (
                    [0] => Exam6.php
                    [1] => Exam8.php
                    [Refactoring/] => Array
                        (
                            [0] => Exam6.php
                            [1] => Exam8.php
                            [2] => Exam4.php
                            [3] => Exam7.php
                            [4] => Exam2.php
                            [5] => Exam5.php
                            [6] => Exam1.php
                            [7] => Exam3.php
                        )

                    [2] => Exam4.php
                    [3] => Home.php
                    [4] => Exam7.php
                    [5] => Exam2.php
                    [6] => Exam5.php
                    [7] => Exam1.php
                    [8] => Exam3.php
                )

            [Capsulation/] => Array
                (
                    [Refactoring/] => Array
                        (
                            [0] => Exam1.php
                        )

                    [0] => Home.php
                    [1] => Exam1.php
                )

        )

    [0] => Home.php
    [Response/] => Array
        (
            [Api/] => Array
                (
                    [0] => Home.php
                    [1] => Exam1.php
                )

            [Cell/] => Array
                (
                    [0] => Home.php
                    [1] => Blog.php
                    [2] => Cache.php
                )

            [Layout/] => Array
                (
                    [0] => Home.php
                    [1] => MyLayout.php
                )

            [Parser/] => Array
                (
                    [0] => Render.php
                    [1] => Loop.php
                    [2] => Simple.php
                    [3] => Exam4.php
                    [4] => Home.php
                )

            [Localization/] => Array
                (
                    [0] => Test.php
                    [1] => Home.php
                    [2] => IcuSample.php
                    [3] => Locale.php
                    [4] => Lang.php
                )

            [Http/] => Array
                (
                    [0] => Download.php
                    [1] => Home.php
                    [2] => Caching.php
                    [3] => SetOutput.php
                )

            [View/] => Array
                (
                    [0] => Page.php
                    [1] => Loop.php
                    [2] => Home.php
                    [3] => Blog.php
                    [4] => Cache.php
                    [5] => Data.php
                )

            [Table/] => Array
                (
                    [0] => Custom.php
                    [1] => Home.php
                    [2] => Example.php
                )

        )

    [Controller/] => Array
        (
            [0] => Remap2.php
            [1] => Home.php
            [2] => Remap1.php
            [3] => Helloworld2.php
            [4] => Invisible.php
            [5] => Products.php
            [6] => Helloworld1.php
        )

    [Filters/] => Array
        (
            [0] => Login.php
            [1] => Home.php
        )

    [Routing/] => Array
        (
            [0] => Blogs.php
            [1] => Reverse.php
            [2] => Home.php
            [3] => Galleries.php
            [4] => Catalog2.php
            [5] => Catalog.php
            [6] => Users.php
            [7] => Products.php
            [Admin/] => Array
                (
                    [0] => Blogs.php
                    [1] => Users.php
                )

            [API/] => Array
                (
                    [v1/] => Array
                        (
                            [0] => Users2.php
                            [1] => Users.php
                        )

                )

        )

    [Cli/] => Array
        (
            [0] => Hello.php
        )

    [Database/] => Array
        (
            [Queries/] => Array
                (
                    [0] => Home.php
                    [1] => Escape.php
                    [2] => Identifier.php
                    [3] => Basic.php
                    [4] => Prepare.php
                    [5] => Prefix.php
                    [6] => Bind.php
                )

            [Qbuilder/] => Array
                (
                    [0] => Select.php
                    [1] => Orderby.php
                    [2] => Delete.php
                    [3] => Where.php
                    [4] => Update.php
                    [5] => Home.php
                    [6] => Insert.php
                    [7] => Qgroup.php
                    [8] => Like.php
                    [9] => Limit.php
                )

            [Helper/] => Array
                (
                    [0] => Database.php
                    [1] => Home.php
                    [2] => Query.php
                )

            [Configuration/] => Array
                (
                    [0] => Home.php
                )

            [Quick/] => Array
                (
                    [0] => Home.php
                    [1] => QueryBuilder.php
                    [2] => Start.php
                )

            [Result/] => Array
                (
                    [0] => GetRow.php
                    [1] => Home.php
                    [2] => Helper.php
                    [3] => GetUnbufferedRow.php
                    [4] => GetResult.php
                    [5] => User.php
                )

        )

    [Ci4lab/] => Array
        (
            [Lab1/] => Array
                (
                    [0] => Home.php
                    [1] => Exam2.php
                    [2] => Exam1.php
                )

        )

    [1] => BaseController.php
)