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            [parent_category] => Array
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                    [name] => Computer and Technology
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            [subcategories] => Array
                (
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                        (
                            [name] => Microsoft Excel
                            [slug] => microsoft-excel
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                    [1] => Array
                        (
                            [name] => Python
                            [slug] => python
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            [parent_category] => Array
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                    [slug] => math
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            [subcategories] => Array
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                        (
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                            [slug] => algebra-1
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                        (
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                            [slug] => algebra-2
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                            [slug] => calculus
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                        (
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                            [slug] => common-core
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                        (
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                            [slug] => elementary-math
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                        (
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                            [slug] => prealgebra
                            [id] => 1724
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                            [slug] => precalculus
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                        (
                            [name] => SAT Math
                            [slug] => sat-math
                            [id] => 1740
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                        (
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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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                            [slug] => physics
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            [subcategories] => Array
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