array(2) { [0]=> array(3) { ["product_id"]=> string(3) "145" ["category_id"]=> string(3) "108" ["main_category"]=> string(1) "0" } [1]=> array(3) { ["product_id"]=> string(3) "145" ["category_id"]=> string(3) "127" ["main_category"]=> string(1) "1" } }