<?php
/**
* Shows how currency type hints
*/
use Currency\AbstractCurrency as Currency;
use Currency\Eur;
use Currency\Usd;
require '../vendor/autoload.php';
echo PHP_EOL;
class Example
{
public function workWithCurrency(Currency $c)
{
echo $c, PHP_EOL;
var_dump($c);
}
public function workOnlyWithUsd(Usd $usd)
{
echo $usd, PHP_EOL;
var_dump($usd);
}
}
$eur = new Eur('2');
$usd = new Usd('300');
$example = new Example();
$example->workWithCurrency($eur);
$example->workOnlyWithUsd($usd);
// This would rise fatal error
//$example->workOnlyWithUsd($eur);