array(5) { [0]=> array(2) { ["product_id"]=> string(2) "88" ["category_id"]=> string(2) "59" } [1]=> array(2) { ["product_id"]=> string(2) "88" ["category_id"]=> string(2) "61" } [2]=> array(2) { ["product_id"]=> string(2) "88" ["category_id"]=> string(2) "62" } [3]=> array(2) { ["product_id"]=> string(2) "88" ["category_id"]=> string(3) "108" } [4]=> array(2) { ["product_id"]=> string(2) "88" ["category_id"]=> string(3) "116" } }