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

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

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            [parent_category] => Array
                (
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                    [slug] => history-social-studies
                    [name] => History and Social Studies
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            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => American History
                            [slug] => american-history
                            [id] => 1773
                        )

                    [1] => Array
                        (
                            [name] => Social Studies
                            [slug] => social-studies
                            [id] => 1779
                        )

                )

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            [parent_category] => Array
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                    [slug] => math
                    [name] => Math
                )

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

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

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

                    [3] => Array
                        (
                            [name] => Differential Equations
                            [slug] => differential-equations
                            [id] => 1731
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                        (
                            [name] => Discrete Math
                            [slug] => discrete-math
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                        (
                            [name] => Elementary Math
                            [slug] => elementary-math
                            [id] => 1743
                        )

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                        (
                            [name] => Geometry
                            [slug] => geometry
                            [id] => 1727
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                    [7] => Array
                        (
                            [name] => Linear Algebra
                            [slug] => linear-algebra
                            [id] => 1733
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                        (
                            [name] => Precalculus
                            [slug] => precalculus
                            [id] => 1728
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                        (
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                            [slug] => sat-math
                            [id] => 1740
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                            [slug] => trigonometry
                            [id] => 1729
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            [parent_category] => Array
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                    [slug] => science
                    [name] => Science
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            [subcategories] => Array
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                        (
                            [name] => Elementary Science
                            [slug] => elementary-science
                            [id] => 1759
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)