leaphly / price
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Requires
- mathiasverraes/money: dev-master
Requires (Dev)
- doctrine/dbal: ~2.4
- phpunit/phpunit: ~4
This package is auto-updated.
Last update: 2024-10-18 23:00:30 UTC
README
A Price is the amount of a product in different currencies.
In Dollar a t-shirt costs 4$,
in Eur the same t-shirt costs 3€
if British Pound the cost is given by the current conversion of 0.7900
in PHP is:
$tShirtPrice = new Price( [ 'EUR' => 300, 'USD' => 400 ], ['EUR/GBP 0.7900'] // array of conversions ); echo $tShirtPrice->inEUR(); // 300 same as ->getAmount('EUR') echo $tShirtPrice->inUSD(); // 400 same as ->getAmount('USD') echo $tShirtPrice->inGBP(); // 237 same as ->getAmount('GBP')
Why?!
- Because is not recommended to work with the float for the money in PHP...
- Because is better to implement money as value objects.
- Because in the e-commerce domain a product has always* a different price for different currencies.
- Because we needed :).
Goodies:
- It helps you to work with money.
- It helps you to work with currencies.
- It helps you to work with multiple currencies, converted or explicit.
- It is shipped with some math operations:
addition
,multiplication
,division
,subtraction
... - This library extends the mathiasverraes/money.
- Immutable Value Object.
- Shipped with an example of
DoctrineType
Simple usage
- The T-Shirt costs 10€ and 8£
Constructor
Usage with explicit currency values.
$ticketPrice = new Price( [ 'EUR' => 1000, 'GBP' => 800 ] ); echo $ticketPrice->inEUR(); // return 1000 var_dump($ticketPrice->availableCurrencies()); // array with EUR, GBP
Usage with mixed explicit and converted values
$ticketPrice = new Price( [ 'EUR' => 100, 'USD' => 130 ], ['EUR/GBP 0.7901'] // this is an array of conversions with the ISO standard format. ); echo $ticketPrice->inEUR(); // 100 echo $ticketPrice->inGBP(); // 79 is calculated var_dump($ticketPrice->availableCurrencies()); // array with EUR, USD, GBP
Do we use the same language?
- An espresso coffee costs [2€ or 2.3$] here and [1€ or 1.2$] take away.
espresso
is a product.
here
and take away
are contexts (still is a missing feature).
2€
2.3$
is a Price with 2 currencies,
1€
1.2$
is a Price with 2 currencies,
2€ or 2.3$ here, and 1€ or 1.2$ for take away.
is a PriceList (still is a missing feature).
API (still not stable)
Price
public function inXYZ($currency); // ZYX is a valid currency like EUR or GBP public function getAmount($currency); public function hasAmount($currency); public function availableCurrencies(); public function equals(Price $other); public function add(Price $addend); public function subtract(Price $subtrahend); public function multiply($multiplier); public function divide($divisor); public function isZero();
Example sum two prices
$ticketPrice = new Price( [ 'EUR' => 100, 'USD' => 130 ], ['EUR/GBP 0.7901'] // this is an array of conversions ); $shirtPrice = new Price( [ 'EUR' => 200, 'CHF' => 300, 'GBP' => 400 ], ); // sum $sumPrice = $ticketPrice->add($shirtPrice); $sumPrice->inEUR(); // 100+200= 400 $sumPrice->inGBP(); // 79+400= 479 $sumPrice->inUSD(); // 130 $sumPrice->inCHF(); // 300
With the \Iterator interface
Implement the \Iterator
so Price is an array of Money.
$price = new Price .... foreach ($price as $money) { echo $money->getAmount() . ' in '. $money->getCurrencies(); }
Use it with the Money Value Object
use Money\Money; use Money\CurrencyPair; $price = new Price( array( Money::EUR(5), Money::USD(10), Money::GBP(10), 'TRY' => 120 // or mixed ), [ CurrencyPair::createFromIso('USD/CHF 1.5'), ] );
Note: the iteration is valid only on the explicit currencies not on the converted one.
License
This library is under the MIT license. See the complete license in the repository:
Resources/meta/LICENSE
Test
composer.phar create-project leaphly/price ~1` bin/phpunit
About
See also the list of contributors.
Reporting an issue or a feature request
Issues and feature requests are tracked in the Github issue tracker.
Note: this library uses the dev
version of the Mathias Verraes Money.