Czech National Bank

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Czech National Bank#

This service retrieves the data from the Czech National Bank.

Installation#

Install the service:

composer require peso/cnb-service

Install the service with all recommended dependencies:

composer require peso/cnb-service php-http/discovery guzzlehttp/guzzle symfony/cache

Usage#

Example:

<?php

use Peso\Peso\CurrencyConverter;
use Peso\Services\CzechNationalBankService;
use Symfony\Component\Cache\Adapter\FilesystemAdapter;
use Symfony\Component\Cache\Psr16Cache;

require __DIR__ . '/../vendor/autoload.php';

$cache = new Psr16Cache(new FilesystemAdapter(directory: __DIR__ . '/cache'));
$service = new CzechNationalBankService($cache);
$converter = new CurrencyConverter($service);

// 310812.50 as of 2025-06-23
echo $converter->convert('12500', 'EUR', 'CZK', 2), PHP_EOL;

// reversible (wraps service with ReversibleService)

$service = CzechNationalBankService::reversible($cache);
$converter = new CurrencyConverter($service);

// 502.71 as of 2025-06-23
echo $converter->convert('12500', 'CZK', 'EUR', 2), PHP_EOL;

Warning

Reversible Factory emits non-precise services that can only be used in informational purposes.

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