如何从PHP中的json响应中通过键提取值 [英] How to extract value by key from json response in PHP

问题描述

我正在使用getResponse api来获取有关订户的更新. 这是var_dump($result);

I'm using getResponse api for getting updated about subscribers. This is what is printing after var_dump($result);

object(stdClass)#2 (1) {
  ["updated"]=>
  int(1)
}

我如何提取/解码/编码结果以请求密钥:更新"并获取其值:1?

How do i extract / decode / encode the result to request the key: "update" and get it's value: 1 ?

谢谢

推荐答案

    // json object.
    $contents = '{"firstName":"John", "lastName":"Doe"}';

    // Option 1: through the use of an array.
    $jsonArray = json_decode($contents,true);

    $key = "firstName";

    $firstName = $jsonArray[$key];


    // Option 2: through the use of an object.
    $jsonObj = json_decode($contents);

    $firstName = $jsonObj->$key;

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