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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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                            [name] => Microsoft Excel
                            [slug] => microsoft-excel
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            [parent_category] => Array
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                    [slug] => languages
                    [name] => Languages
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            [subcategories] => Array
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                            [slug] => vietnamese
                            [id] => 1710
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                )

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            [parent_category] => Array
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                    [id] => 1723
                    [slug] => math
                    [name] => Math
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            [subcategories] => Array
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                        (
                            [name] => ACT Math
                            [slug] => act-math
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                            [slug] => algebra-1
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                            [slug] => algebra-2
                            [id] => 1726
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                            [slug] => calculus
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                        (
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                            [slug] => geometry
                            [id] => 1727
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                            [slug] => linear-algebra
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                            [slug] => prealgebra
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                            [name] => Precalculus
                            [slug] => precalculus
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                            [name] => SAT Math
                            [slug] => sat-math
                            [id] => 1740
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                            [slug] => trigonometry
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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] => physical-science
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            [parent_category] => Array
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                    [slug] => test-prep-exams
                    [name] => Test Prep and Exams
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            [subcategories] => Array
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                    [0] => Array
                        (
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                            [slug] => act-science
                            [id] => 1870
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)