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

            [subcategories] => Array
                (
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                        (
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                            [slug] => java
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                        )

                    [1] => Array
                        (
                            [name] => Microsoft Excel
                            [slug] => microsoft-excel
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                    [2] => Array
                        (
                            [name] => Microsoft Word
                            [slug] => microsoft-word
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            [parent_category] => Array
                (
                    [id] => 1880
                    [slug] => engineering
                    [name] => Engineering
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Mechanical Engineering
                            [slug] => mechanical-engineering
                            [id] => 1881
                        )

                )

        )

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            [parent_category] => Array
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                    [slug] => english-reading
                    [name] => English and Reading
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            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => SAT Reading
                            [slug] => sat-reading
                            [id] => 1770
                        )

                )

        )

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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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                    [1] => Array
                        (
                            [name] => Algebra 2
                            [slug] => algebra-2
                            [id] => 1726
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                    [2] => Array
                        (
                            [name] => Calculus
                            [slug] => calculus
                            [id] => 1730
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                    [3] => Array
                        (
                            [name] => Differential Equations
                            [slug] => differential-equations
                            [id] => 1731
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                        (
                            [name] => Geometry
                            [slug] => geometry
                            [id] => 1727
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                        (
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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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                        (
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                            [slug] => trigonometry
                            [id] => 1729
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            [parent_category] => Array
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                    [id] => 1744
                    [slug] => science
                    [name] => Science
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            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Chemistry
                            [slug] => chemistry
                            [id] => 1747
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                    [1] => Array
                        (
                            [name] => Physics
                            [slug] => physics
                            [id] => 1748
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)