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            [parent_category] => Array
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                    [name] => English and Reading
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            [subcategories] => Array
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                        (
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                            [slug] => sat-reading
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                    [slug] => math
                    [name] => Math
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                        (
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                            [slug] => act-math
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                            [slug] => algebra-1
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                            [slug] => algebra-2
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                            [slug] => elementary-math
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                        (
                            [name] => Prealgebra
                            [slug] => prealgebra
                            [id] => 1724
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                        (
                            [name] => SAT Math
                            [slug] => sat-math
                            [id] => 1740
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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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                        (
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                            [slug] => biology
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                        (
                            [name] => Chemistry
                            [slug] => chemistry
                            [id] => 1747
                        )

                    [2] => Array
                        (
                            [name] => Genetics
                            [slug] => genetics
                            [id] => 1753
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                    [slug] => test-prep-exams
                    [name] => Test Prep and Exams
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            [subcategories] => Array
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                            [name] => ACT Science
                            [slug] => act-science
                            [id] => 1870
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