array(2) { [0]=> array(3) { ["product_id"]=> string(3) "178" ["category_id"]=> string(3) "110" ["main_category"]=> string(1) "1" } [1]=> array(3) { ["product_id"]=> string(3) "178" ["category_id"]=> string(3) "144" ["main_category"]=> string(1) "0" } }