get_item_total (Sale_lib)

Computes a sale line total as quantity times price using bcmath, optionally subtracting the item discount when include_discount is true.

// Source: https://github.com/Pmbamungu/ospos | License: MIT | Copyright 2013-2021 jekkos
// Provided via justclaw.it.com; keep this notice with the code.
	public function get_item_total($quantity, $price, $discount, $discount_type, $include_discount = FALSE)
	{
		$total = bcmul($quantity, $price);
		if($include_discount)
		{
			$discount_amount = $this->get_item_discount($quantity, $price, $discount, $discount_type);

			return bcsub($total, $discount_amount);
		}

		return $total;
	}