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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] => Computer Programming
                            [slug] => computer-programming
                            [id] => 1813
                        )

                    [1] => Array
                        (
                            [name] => HTML
                            [slug] => html
                            [id] => 1817
                        )

                    [2] => Array
                        (
                            [name] => Java
                            [slug] => java
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                        )

                )

        )

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            [parent_category] => Array
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                    [slug] => engineering
                    [name] => Engineering
                )

            [subcategories] => Array
                (
                    [0] => Array
                        (
                            [name] => Electrical Engineering
                            [slug] => electrical-engineering
                            [id] => 1882
                        )

                )

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            [parent_category] => Array
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                    [slug] => english-reading
                    [name] => English and Reading
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            [subcategories] => Array
                (
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                            [name] => Proofreading
                            [slug] => proofreading
                            [id] => 1767
                        )

                    [1] => Array
                        (
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                            [slug] => writing
                            [id] => 1764
                        )

                )

        )

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            [parent_category] => Array
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                    [id] => 1699
                    [slug] => languages
                    [name] => Languages
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            [subcategories] => Array
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                        (
                            [name] => English
                            [slug] => english
                            [id] => 1704
                        )

                    [1] => Array
                        (
                            [name] => Farsi
                            [slug] => farsi
                            [id] => 1716
                        )

                )

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            [parent_category] => Array
                (
                    [id] => 1723
                    [slug] => math
                    [name] => Math
                )

            [subcategories] => Array
                (
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                        (
                            [name] => ACT Math
                            [slug] => act-math
                            [id] => 1741
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                        (
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                            [slug] => algebra-1
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                            [slug] => algebra-2
                            [id] => 1726
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                            [slug] => elementary-math
                            [id] => 1743
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                        (
                            [name] => Geometry
                            [slug] => geometry
                            [id] => 1727
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                        (
                            [name] => Linear Algebra
                            [slug] => linear-algebra
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                    [6] => Array
                        (
                            [name] => Prealgebra
                            [slug] => prealgebra
                            [id] => 1724
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                        (
                            [name] => Precalculus
                            [slug] => precalculus
                            [id] => 1728
                        )

                    [8] => Array
                        (
                            [name] => SAT Math
                            [slug] => sat-math
                            [id] => 1740
                        )

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            [parent_category] => Array
                (
                    [id] => 1856
                    [slug] => test-prep-exams
                    [name] => Test Prep and Exams
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            [subcategories] => Array
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                    [0] => Array
                        (
                            [name] => SAT Writing
                            [slug] => sat-writing
                            [id] => 1871
                        )

                )

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)