Array
(
    [post_type] => product
    [error] => 
    [m] => 
    [p] => 0
    [post_parent] => 
    [subpost] => 
    [subpost_id] => 
    [attachment] => 
    [attachment_id] => 0
    [name] => 
    [pagename] => 
    [page_id] => 0
    [second] => 
    [minute] => 
    [hour] => 
    [day] => 0
    [monthnum] => 0
    [year] => 0
    [w] => 0
    [category_name] => 
    [tag] => 
    [cat] => 
    [tag_id] => 
    [author] => 
    [author_name] => 
    [feed] => 
    [tb] => 
    [paged] => 1
    [meta_key] => discount_percentage
    [meta_value] => 
    [preview] => 
    [s] => 
    [sentence] => 
    [title] => 
    [fields] => all
    [menu_order] => 
     => 
    [category__in] => Array
        (
        )

    [category__not_in] => Array
        (
        )

    [category__and] => Array
        (
        )

    [post__in] => Array
        (
        )

    [post__not_in] => Array
        (
        )

    [post_name__in] => Array
        (
        )

    [tag__in] => Array
        (
        )

    [tag__not_in] => Array
        (
        )

    [tag__and] => Array
        (
        )

    [tag_slug__in] => Array
        (
        )

    [tag_slug__and] => Array
        (
        )

    [post_parent__in] => Array
        (
        )

    [post_parent__not_in] => Array
        (
        )

    [author__in] => Array
        (
        )

    [author__not_in] => Array
        (
        )

    [search_columns] => Array
        (
        )

    [tax_query] => Array
        (
            [0] => Array
                (
                    [taxonomy] => pa_grade
                    [field] => slug
                    [terms] => f
                    [operator] => IN
                )

            [1] => Array
                (
                    [taxonomy] => product_visibility
                    [field] => term_taxonomy_id
                    [terms] => Array
                        (
                            [0] => 9
                            [1] => 11
                        )

                    [operator] => NOT IN
                )

        )

    [orderby] => meta_value_num
    [order] => DESC
    [meta_query] => Array
        (
            [0] => Array
                (
                    [key] => _price
                    [value] => 0
                    [type] => numeric
                    [compare] => >
                )

            [1] => Array
                (
                    [key] => _price
                    [value] => 0
                    [compare] => >
                )

            [2] => Array
                (
                    [key] => _stock_status
                    [value] => instock
                )

        )

    [wc_query] => product_query
    [posts_per_page] => 15
    [ignore_sticky_posts] => 
    [suppress_filters] => 
    [cache_results] => 1
    [update_post_term_cache] => 1
    [update_menu_item_cache] => 
    [lazy_load_term_meta] => 1
    [update_post_meta_cache] => 1
    [nopaging] => 
    [comments_per_page] => 50
    [no_found_rows] => 
    [taxonomy] => pa_grade
    [term] => f
    [post_status] => publish
)