fix return tag in cart methods using numberFormat

[vintagesucks]

Both tax and subtotal return numberFormat(), which returns the result of a number_format call: string.

LaravelShoppingcart/src/Cart.php

Lines 253 to 270 in 4290204

	/**
	* Get the total tax of the items in the cart.
	*
	* @param int $decimals
	* @param string $decimalPoint
	* @param string $thousandSeperator
	* @return float
	*/
	public function tax($decimals = null, $decimalPoint = null, $thousandSeperator = null)
	{
	$content = $this->getContent();
	$tax = $content->reduce(function ($tax, CartItem $cartItem) {
	return $tax + ($cartItem->qty * $cartItem->tax);
	}, 0);
	return $this->numberFormat($tax, $decimals, $decimalPoint, $thousandSeperator);
	}

LaravelShoppingcart/src/Cart.php

Lines 272 to 289 in 4290204

	/**
	* Get the subtotal (total - tax) of the items in the cart.
	*
	* @param int $decimals
	* @param string $decimalPoint
	* @param string $thousandSeperator
	* @return float
	*/
	public function subtotal($decimals = null, $decimalPoint = null, $thousandSeperator = null)
	{
	$content = $this->getContent();
	$subTotal = $content->reduce(function ($subTotal, CartItem $cartItem) {
	return $subTotal + ($cartItem->qty * $cartItem->price);
	}, 0);
	return $this->numberFormat($subTotal, $decimals, $decimalPoint, $thousandSeperator);
	}

LaravelShoppingcart/src/Cart.php

Lines 555 to 577 in 4290204

	/**
	* Get the Formated number
	*
	* @param $value
	* @param $decimals
	* @param $decimalPoint
	* @param $thousandSeperator
	* @return string
	*/
	private function numberFormat($value, $decimals, $decimalPoint, $thousandSeperator)
	{
	if(is_null($decimals)){
	$decimals = is_null(config('cart.format.decimals')) ? 2 : config('cart.format.decimals');
	}
	if(is_null($decimalPoint)){
	$decimalPoint = is_null(config('cart.format.decimal_point')) ? '.' : config('cart.format.decimal_point');
	}
	if(is_null($thousandSeperator)){
	$thousandSeperator = is_null(config('cart.format.thousand_seperator')) ? ',' : config('cart.format.thousand_seperator');
	}
	return number_format($value, $decimals, $decimalPoint, $thousandSeperator);
	}