/**
   * Randomly generates a price in the range (min,max).
   *
   * @param min - the min value
   * @param max - the max value
   * @return a randomly generated price value
   */
  private function generateRandomPrice($min = 1, $max = 100)
  {
    $random_price = $min + rand() / getrandmax() * ($max - $min);
    return round($random_price, 2);
  }