Currency exchange rates library for PHP

Swap allows you to retrieve currency exchange rates from various services such as Fixer or Google and optionally cache the results. It is integrated to other libraries like moneyphp/money and provides a Symfony Bundle and a Laravel Package.

QuickStart

$ composer require florianv/swap php-http/message php-http/guzzle6-adapter

use Swap\Builder;

// Build Swap with Fixer.io
$swap = (new Builder())
    ->add('fixer', ['access_key' => 'your-access-key'])
    ->build();
    
// Get the latest EUR/USD rate
$rate = $swap->latest('EUR/USD');

// 1.129
$rate->getValue();

// 2016-08-26
$rate->getDate()->format('Y-m-d');

// Get the EUR/USD rate 15 days ago
$rate = $swap->historical('EUR/USD', (new \DateTime())->modify('-15 days'));

Documentation

The complete documentation can be found here.

Services

Here is the list of the currently implemented services.

Service	Registry Alias	Base Currency	Quote Currency	Historical
Fixer	fixer	*	*	Yes
European Central Bank	european_central_bank	EUR	*	Yes
Google	google	*	*	No
Open Exchange Rates	USD (free), * (paid)	*	Yes
Xignite	xignite	*	*	Yes
WebserviceX	webservicex	*	*	No
National Bank of Romania	national_bank_of_romania	RON	*	No
Central Bank of the Republic of Turkey	central_bank_of_republic_turkey	*	TRY	No
Central Bank of the Czech Republic	central_bank_of_czech_republic	*	CZK	No
Russian Central Bank	russian_central_bank	*	RUB	Yes
currencylayer	currency_layer	USD (free), * (paid)	*	Yes
Cryptonator	cryptonator	* Crypto (Limited standard currencies)	* Crypto (Limited standard currencies)	No
1Forge	forge	* (free but limited or paid)	* (free but limited or paid)	No
CurrencyDataFeed	currency_data_feed	* (free but limited or paid)	* (free but limited or paid)	No
Array	array	*	*	Yes

Integrations

• A Symfony Bundle FlorianvSwapBundle
• A Laravel Package florianv/laravel-swap

Credits

• Florian Voutzinos
• All Contributors

License

The MIT License (MIT). Please see LICENSE for more information.