字符从Google货币API返回

Question

背景:

我创建了一个显示来自不同国家的货币汇率的网站.我使用Google的货币转换器API来执行计算.

http://www.google.com/ig/calculator?h1=en&q=9999gbp=?usd

请注意,我已在如通过查询9999 Great British Pounds到United States Dollars.

API返回:

{lhs: "9999 British pounds",rhs: "15 769.4229 U.S. dollars",error: "",icc: true}

谷歌已经分离15 769.4229与之间的空白5和7.

当我在我的网站上返回计算结果时,这会导致问题,因为白色空格字符用 符号替换.

见下面的屏幕截图:

任何想法这个符号被称为什么,所以我可以尝试删除它？

<?php

// Check to ensure that form has been submitted 
if (isset($_POST['amount'], $_POST['from'], $_POST['to'])) {
    $amount = trim($_POST['amount']);
    $from = $_POST['from'];
    $to = $_POST['to'];

    try {
        $conversion = currency_convert($googleCurrencyApi, $amount, $from, $to);
    } catch (Exception $e) {
        echo 'Caught exception: ', $e->getMessage();
    }

    // Check URL has been formed 
    if ($conversion == false) {
        echo 'Sorry, something went wrong';
    } else {
        echo $conversion[0], ' = ', $conversion[1];
    }

}

function currency_convert($googleCurrencyApi, $amount, $from, $to) {

    $result = file_get_contents($googleCurrencyApi . $amount . $from . '=?' . $to);
    $expl = explode('"', $result);

    if ($expl[1] == '' || $expl[3] == '') {
        throw new Exception('An error has occured.  Unable to get file contents');
    } else {
        return array(
            $expl[1],
            $expl[3]
        );
    }
}
?>

到目前为止,这是我的代码,所以你可以了解我的逻辑背后的想法.

Answer 1

这很可能是不间断的空格，请尝试替换为空格：

$result = file_get_contents($googleCurrencyApi . $amount . $from . '=?' . $to);
$result = str_replace("\xA0", " ", $result);