IS CATEGORY Array
Array ( [0] => WP_Term Object ( [term_id] => 2 [name] => Article [slug] => article [term_group] => 0 [term_taxonomy_id] => 2 [taxonomy] => category [description] => [parent] => 0 [count] => 3 [filter] => raw [cat_ID] => 2 [category_count] => 3 [category_description] => [cat_name] => Article [category_nicename] => article [category_parent] => 0 ) )