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

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

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

                    [2] => Array
                        (
                            [name] => SAT Math
                            [slug] => sat-math
                            [id] => 1740
                        )

                )

        )

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

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Biology
                            [slug] => biology
                            [id] => 1746
                        )

                    [1] => Array
                        (
                            [name] => Chemistry
                            [slug] => chemistry
                            [id] => 1747
                        )

                )

        )

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

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => ACT Science
                            [slug] => act-science
                            [id] => 1870
                        )

                    [1] => Array
                        (
                            [name] => MCAT
                            [slug] => mcat
                            [id] => 1865
                        )

                )

        )

)