Хранение и порядок

array(2) {
  [1]=>
  array(1) {
    ["ZERO-INF"]=>
    array(8) {
      ["ID"]=>
      string(5) "86502"
      ["PRICE"]=>
      float(76)
      ["DISCOUNT_PRICE"]=>
      float(76)
      ["UNROUND_DISCOUNT_PRICE"]=>
      float(76)
      ["CURRENCY"]=>
      string(3) "RUB"
      ["VAT_RATE"]=>
      float(0.2)
      ["PRINT_PRICE"]=>
      string(9) "76 руб"
      ["PRINT_DISCOUNT_PRICE"]=>
      string(9) "76 руб"
    }
  }
  [6]=>
  array(1) {
    ["ZERO-INF"]=>
    array(8) {
      ["ID"]=>
      string(6) "116927"
      ["PRICE"]=>
      float(74)
      ["DISCOUNT_PRICE"]=>
      float(74)
      ["UNROUND_DISCOUNT_PRICE"]=>
      float(74)
      ["CURRENCY"]=>
      string(3) "RUB"
      ["VAT_RATE"]=>
      float(0.2)
      ["PRINT_PRICE"]=>
      string(9) "74 руб"
      ["PRINT_DISCOUNT_PRICE"]=>
      string(9) "74 руб"
    }
  }
}