How to get all child categories in PHP?

Hi All, sometimes you’re working with eCommerce site and you want to get all subcategories including all level of childs like,

category
    sub-category1
    sub-category2
        sub-sub-category1
        sub-sub-category2
    sub-category3

So, Here I am going to explain how to get all child categories in PHP. In the following function, I have recursively called function to get all level child categories.

That’s it. You can use above function where you require.

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