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

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Business
                            [slug] => business
                            [id] => 1886
                        )

                    [1] => Array
                        (
                            [name] => Finance
                            [slug] => finance
                            [id] => 1890
                        )

                    [2] => Array
                        (
                            [name] => Financial Accounting
                            [slug] => financial-accounting
                            [id] => 1887
                        )

                    [3] => Array
                        (
                            [name] => Managerial Accounting
                            [slug] => managerial-accounting
                            [id] => 1888
                        )

                )

        )

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

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Proofreading
                            [slug] => proofreading
                            [id] => 1767
                        )

                    [1] => Array
                        (
                            [name] => Reading
                            [slug] => reading
                            [id] => 1763
                        )

                    [2] => Array
                        (
                            [name] => Spelling
                            [slug] => spelling
                            [id] => 1769
                        )

                    [3] => Array
                        (
                            [name] => Vocabulary
                            [slug] => vocabulary
                            [id] => 1765
                        )

                )

        )

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

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => English
                            [slug] => english
                            [id] => 1704
                        )

                    [1] => Array
                        (
                            [name] => Japanese
                            [slug] => japanese
                            [id] => 1712
                        )

                )

        )

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

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Elementary Math
                            [slug] => elementary-math
                            [id] => 1743
                        )

                )

        )

    [1903] => Array
        (
            [parent_category_id] => 1903
            [parent_category] => Array
                (
                    [id] => 1903
                    [slug] => special-needs-learning
                    [name] => Special Needs and Learning Support
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Career Development
                            [slug] => career-development
                            [id] => 1911
                        )

                    [1] => Array
                        (
                            [name] => Study Skills
                            [slug] => study-skills
                            [id] => 1910
                        )

                )

        )

    [1856] => Array
        (
            [parent_category_id] => 1856
            [parent_category] => Array
                (
                    [id] => 1856
                    [slug] => test-prep-exams
                    [name] => Test Prep and Exams
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => TOEFL
                            [slug] => toefl
                            [id] => 1857
                        )

                )

        )

)