Immutable PHP Currency Converter

Immutable PHP Currency Converter

The gocanto/converter composer package by Gustavo Ocanto is an immutable PHP currency converter that’s data-agnostic.

Related: Laravel Money is a package for formatting money in Laravel projects.

You need to bring your own database or repository of currency conversion data, and implement a data layer for the conversions. Here’s an example repository from the project:

<?php

namespace Gocanto\Converter\Examples;

use Gocanto\Converter\CurrencyValue;
use Gocanto\Converter\Interfaces\CurrenciesRepositoryInterface;

class CurrenciesRepositoryExample implements CurrenciesRepositoryInterface
{
    /**
     * @param string $code
     * @return CurrencyValue
     */
    public function getCurrentRate(string $code) : CurrencyValue
    {
        // here, you need to write any related logic to query your DB. Once you have this info,
        // you will have to create the currency value object with the valid info as so:

        return new CurrencyValue('U.S. Dollars', 'USD', '$', 0.731271);
    }
}

Next, here’s an example of a currency conversion backed by the data repository:

use Gocanto\Converter\Examples\CurrenciesRepositoryExample;
use Gocanto\Converter\Converter;
use Gocanto\Converter\RoundedNumber;

$repository = new CurrenciesRepositoryExample;
$converter = new Converter($repository);

$conversion = $converter
    ->withAmount(RoundedNumber::make(10))
    ->withCurrency('SGD')
    ->convertTo('USD');

You can learn more about this package, get full installation instructions, and view the source code on GitHub at gocanto/converter.

Filed in: News

Newsletter

Join 31,000+ others and never miss out on new tips, tutorials, and more.

Laravel News Partners

Laravel Jobs

Senior Full Stack PHP Developer (Laravel)
Remote
MAPPEN
Senior Laravel Developer
Remote
ACTO
Senior Full-Stack Engineer
[REMOTE: USA Only]
Curricula
Developers for B2B eCommerce SaaS, AWS serverless, Laravel, Vue, Python
Remote, full time EU only
ES Tech Group
Senior PHP Developer (Laravel)
Remote
The Interaction Design Foundation