Array
(
    [1885] => Array
        (
            [parent_category_id] => 1885
            [parent_category] => Array
                (
                    [id] => 1885
                    [slug] => business-finance
                    [name] => Business and Finance
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Macroeconomics
                            [slug] => macroeconomics
                            [id] => 1891
                        )

                    [1] => Array
                        (
                            [name] => Microeconomics
                            [slug] => microeconomics
                            [id] => 1892
                        )

                )

        )

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

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

                )

        )

    [1760] => Array
        (
            [parent_category_id] => 1760
            [parent_category] => Array
                (
                    [id] => 1760
                    [slug] => english-reading
                    [name] => English and Reading
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => ACT English
                            [slug] => act-english
                            [id] => 1771
                        )

                )

        )

    [1699] => Array
        (
            [parent_category_id] => 1699
            [parent_category] => Array
                (
                    [id] => 1699
                    [slug] => languages
                    [name] => Languages
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Latin
                            [slug] => latin
                            [id] => 1702
                        )

                )

        )

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

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => ACT Math
                            [slug] => act-math
                            [id] => 1741
                        )

                    [1] => Array
                        (
                            [name] => Algebra 1
                            [slug] => algebra-1
                            [id] => 1725
                        )

                    [2] => Array
                        (
                            [name] => Algebra 2
                            [slug] => algebra-2
                            [id] => 1726
                        )

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

                    [4] => Array
                        (
                            [name] => Differential Equations
                            [slug] => differential-equations
                            [id] => 1731
                        )

                    [5] => Array
                        (
                            [name] => Linear Algebra
                            [slug] => linear-algebra
                            [id] => 1733
                        )

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

                    [7] => Array
                        (
                            [name] => Probability
                            [slug] => probability
                            [id] => 1735
                        )

                    [8] => Array
                        (
                            [name] => Statistics
                            [slug] => statistics
                            [id] => 1736
                        )

                )

        )

    [1744] => Array
        (
            [parent_category_id] => 1744
            [parent_category] => Array
                (
                    [id] => 1744
                    [slug] => science
                    [name] => Science
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Physics
                            [slug] => physics
                            [id] => 1748
                        )

                )

        )

)