array(2) {
  [0]=>
  array(2) {
    ["id_product"]=>
    string(4) "6789"
    ["out_of_stock"]=>
    string(1) "2"
  }
  [1]=>
  array(2) {
    ["id_product"]=>
    string(4) "2998"
    ["out_of_stock"]=>
    string(1) "2"
  }
}