Array
(
    [1840] => Array
        (
            [parent_category_id] => 1840
            [parent_category] => Array
                (
                    [id] => 1840
                    [slug] => art-design
                    [name] => Art and Design
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Web Design
                            [slug] => web-design
                            [id] => 1850
                        )

                )

        )

    [1802] => Array
        (
            [parent_category_id] => 1802
            [parent_category] => Array
                (
                    [id] => 1802
                    [slug] => computer-technology
                    [name] => Computer and Technology
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => C
                            [slug] => c
                            [id] => 1827
                        )

                    [1] => Array
                        (
                            [name] => Computer Programming
                            [slug] => computer-programming
                            [id] => 1813
                        )

                    [2] => Array
                        (
                            [name] => Computer Science
                            [slug] => computer-science
                            [id] => 1814
                        )

                    [3] => Array
                        (
                            [name] => CSS
                            [slug] => css
                            [id] => 1816
                        )

                    [4] => Array
                        (
                            [name] => Data Science
                            [slug] => data-science
                            [id] => 1815
                        )

                    [5] => Array
                        (
                            [name] => HTML
                            [slug] => html
                            [id] => 1817
                        )

                    [6] => Array
                        (
                            [name] => Java
                            [slug] => java
                            [id] => 1818
                        )

                    [7] => Array
                        (
                            [name] => JavaScript
                            [slug] => javascript
                            [id] => 1819
                        )

                    [8] => Array
                        (
                            [name] => JQuery
                            [slug] => jquery
                            [id] => 1832
                        )

                    [9] => Array
                        (
                            [name] => PHP
                            [slug] => php
                            [id] => 1823
                        )

                    [10] => Array
                        (
                            [name] => Python
                            [slug] => python
                            [id] => 1820
                        )

                    [11] => Array
                        (
                            [name] => SQL
                            [slug] => sql
                            [id] => 1822
                        )

                    [12] => Array
                        (
                            [name] => UNIX
                            [slug] => unix
                            [id] => 1836
                        )

                )

        )

    [1723] => Array
        (
            [parent_category_id] => 1723
            [parent_category] => Array
                (
                    [id] => 1723
                    [slug] => math
                    [name] => Math
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Calculus
                            [slug] => calculus
                            [id] => 1730
                        )

                    [1] => Array
                        (
                            [name] => Precalculus
                            [slug] => precalculus
                            [id] => 1728
                        )

                    [2] => Array
                        (
                            [name] => Trigonometry
                            [slug] => trigonometry
                            [id] => 1729
                        )

                )

        )

)