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            [parent_category] => Array
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                    [slug] => art-design
                    [name] => Art and Design
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            [subcategories] => Array
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                        (
                            [name] => Adobe Photoshop
                            [slug] => adobe-photoshop
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            [parent_category] => Array
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                    [slug] => computer-technology
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            [subcategories] => Array
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                        (
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                            [slug] => python
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            [parent_category] => Array
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                    [name] => Engineering
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            [subcategories] => Array
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                        (
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                            [slug] => electrical-engineering
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            [parent_category] => Array
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                    [slug] => languages
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            [parent_category] => Array
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            [subcategories] => Array
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                            [slug] => calculus
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)