PHP从API响应中获取json汇率值 [英] PHP grab json exchange rate value from API response

问题描述

我正在使用currencylayer JSON API获取实时货币转换值-有人知道我如何使用PHP从下面的API响应中同时获取"result"值和"quote"值吗?

I am using currencylayer JSON API to get realtime currency conversion value - does anybody know how I could grab both the "result" value and the "quote" value from the API response below using PHP?

我是PHP的新手，我想知道是否可以将其存储在变量中.

I am new to PHP, and I am wondering if it's possible to store it in a variable.

这是JSON:

{
  "success":true,
  "terms":"https:\/\/currencylayer.com\/terms",
  "privacy":"https:\/\/currencylayer.com\/privacy",
  "query":{
    "from":"CAD",
    "to":"GBP",
    "amount":234
  },
  "info":{
    "timestamp":1432829168,
    "quote":0.524191
  },
  "result":122.660694
}

我玩过file_get_contents("URL")，但是我不明白如何获取单个值.

I have played around with file_get_contents("URL") but I didnt understand how to get a single value out.

请求网址如下:

https://apilayer.net/api/convert?access_key=...&from=CAD&to=GBP&amount=234

感谢您的帮助！

推荐答案

好吧，可以说json响应位于名为$response的变量中，您必须使用json_decode然后执行以下操作:

Ok, lets say that json response is in a variable named $response, you must use json_decode and then do as follows:

$decoded = json_decode($response);
$result = $decoded->result;
$quote = $decoded->info->quote;
var_dump($result, $quote);

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