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

                    [1] => Array
                        (
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                            [slug] => computer-science
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                        )

                    [2] => Array
                        (
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                            [slug] => python
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            [parent_category] => Array
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                    [slug] => math
                    [name] => Math
                )

            [subcategories] => Array
                (
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                        (
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                            [slug] => algebra-1
                            [id] => 1725
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                        (
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                            [slug] => algebra-2
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                        (
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                            [slug] => calculus
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                        (
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                            [slug] => differential-equations
                            [id] => 1731
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                        (
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                            [slug] => geometry
                            [id] => 1727
                        )

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                        (
                            [name] => SAT Math
                            [slug] => sat-math
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            [parent_category] => Array
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                    [slug] => music
                    [name] => Music
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            [subcategories] => Array
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                        (
                            [name] => Music Theory
                            [slug] => music-theory
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            [parent_category] => Array
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                    [slug] => science
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            [subcategories] => Array
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                        (
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                            [slug] => physics
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)