What are some free or cost-effective options for fetching and displaying currency exchange rates in PHP applications?

Fetching and displaying currency exchange rates in PHP applications can be achieved by using free or cost-effective API services such as exchangeratesapi.io or currencyconverterapi.com. These APIs provide real-time exchange rates for various currencies and can be easily integrated into PHP applications using HTTP requests. 

<?php
// Fetching currency exchange rates using exchangeratesapi.io API
$base_currency = 'USD';
$target_currency = 'EUR';
$api_key = 'YOUR_API_KEY';

$url = "https://api.exchangeratesapi.io/latest?base=$base_currency&symbols=$target_currency&apikey=$api_key";

$response = file_get_contents($url);
$data = json_decode($response, true);

$exchange_rate = $data['rates'][$target_currency];

echo "1 $base_currency = $exchange_rate $target_currency";
?>

Keywords

currency exchange rates PHP applications fetching displaying free options

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