尝试将 INR 转换为 USD,我的代码是
$url = "http://www.webservicex.net/CurrencyConvertor.asmx/ConversionRate?FromCurrency=INR&ToCurrency=USD";
$usd = simplexml_load_file($url);
echo "1 INR = ".$usd[0] .' USD <br/>';
$uusd=$usd[0];
echo $uusd * 105;
它给我0
结果,我不知道为什么?