Хранение и порядок

array(2) {
  [1]=>
  array(1) {
    ["ZERO-INF"]=>
    array(8) {
      ["ID"]=>
      string(6) "105145"
      ["PRICE"]=>
      float(4990)
      ["DISCOUNT_PRICE"]=>
      float(4990)
      ["UNROUND_DISCOUNT_PRICE"]=>
      float(4990)
      ["CURRENCY"]=>
      string(3) "RUB"
      ["VAT_RATE"]=>
      float(0.2)
      ["PRINT_PRICE"]=>
      string(17) "4 990 руб"
      ["PRINT_DISCOUNT_PRICE"]=>
      string(17) "4 990 руб"
    }
  }
  [6]=>
  array(1) {
    ["ZERO-INF"]=>
    array(8) {
      ["ID"]=>
      string(6) "134089"
      ["PRICE"]=>
      float(4890)
      ["DISCOUNT_PRICE"]=>
      float(4890)
      ["UNROUND_DISCOUNT_PRICE"]=>
      float(4890)
      ["CURRENCY"]=>
      string(3) "RUB"
      ["VAT_RATE"]=>
      float(0.2)
      ["PRINT_PRICE"]=>
      string(17) "4 890 руб"
      ["PRINT_DISCOUNT_PRICE"]=>
      string(17) "4 890 руб"
    }
  }
}

array(2) {
  [1]=>
  array(1) {
    ["ZERO-INF"]=>
    array(8) {
      ["ID"]=>
      string(6) "105136"
      ["PRICE"]=>
      float(8290)
      ["DISCOUNT_PRICE"]=>
      float(8290)
      ["UNROUND_DISCOUNT_PRICE"]=>
      float(8290)
      ["CURRENCY"]=>
      string(3) "RUB"
      ["VAT_RATE"]=>
      float(0.2)
      ["PRINT_PRICE"]=>
      string(17) "8 290 руб"
      ["PRINT_DISCOUNT_PRICE"]=>
      string(17) "8 290 руб"
    }
  }
  [6]=>
  array(1) {
    ["ZERO-INF"]=>
    array(8) {
      ["ID"]=>
      string(6) "134082"
      ["PRICE"]=>
      float(8124)
      ["DISCOUNT_PRICE"]=>
      float(8124)
      ["UNROUND_DISCOUNT_PRICE"]=>
      float(8124)
      ["CURRENCY"]=>
      string(3) "RUB"
      ["VAT_RATE"]=>
      float(0.2)
      ["PRINT_PRICE"]=>
      string(17) "8 124 руб"
      ["PRINT_DISCOUNT_PRICE"]=>
      string(17) "8 124 руб"
    }
  }
}