array(2) {
  [0]=>
  array(2) {
    ["product_id"]=>
    string(3) "884"
    ["category_id"]=>
    string(3) "108"
  }
  [1]=>
  array(2) {
    ["product_id"]=>
    string(3) "884"
    ["category_id"]=>
    string(3) "119"
  }
}