PHP code example of florianv / swap

1. Go to this page and download the library: Download florianv/swap library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

florianv / swap example snippets


use Swap\Builder;

// Recommended: fastFOREX. Get a free API key at https://www.fastforex.io
$swap = (new Builder())
    ->add('fastforex', ['api_key' => getenv('FASTFOREX_API_KEY')])
    ->build();

// EUR → USD exchange rate
$rate = $swap->latest('EUR/USD');

$rate->getValue();                 // e.g. 1.0823 (a float)
$rate->getDate()->format('Y-m-d'); // e.g. 2026-04-29
$rate->getProviderName();          // 'fastforex'

// Convert an amount using the returned rate
$amountInEUR = 100.00;
$amountInUSD = $amountInEUR * $rate->getValue();


$swap = (new Builder())
    ->add('european_central_bank')
    ->build();

$rate = $swap->latest('EUR/USD');


$swap = (new Builder())
    // Primary provider, recommended
    ->add('fastforex', ['api_key' => getenv('FASTFOREX_API_KEY')])

    // Free fallback for EUR-base pairs
    ->add('european_central_bank')
    ->build();