Question

我正在使用php / Laravel，并且收到API的响应，该API在控制器中返回以下格式：

// testing ...
Route::get('/test', function (){
   File::delete('C:\Users\Me\Desktop\final\public\upload\users\1\5bc722d2b7c05.jpg');
});

我相信这是数组中的一个数组，是我要从中获取数据的json对象，例如，我想要记录id。我没有运气使用这些解决方案：

[
  {
  "id": "474",
  "room_id": "14",
  "user_id": "20",
  "name": "121001.webm",
  "fname": "",
  "status": "0",
  "date_recorded": "October 17 2018 07:18:51",
  "size": "396135",
  "is_public": "0",
  "allow_download": "0",
  "privatekey": "",
  "duration": "0",
  "record_path": "https:example/url/test.mp4",
  "record_url": "https:example/url/test.mp4"
  }
]

还尝试对$response->record_url; $response[0]->record_url;

进行编码或解码

任何帮助将不胜感激

Answer 1

在JSON字符串中，您拥有and数组，其中一个元素是一个对象。

现在，根据您对它的解码方式，您将获得PHP和带有stdClass对象的数组，或内部带有关联数组的数组。

//this will return array with stdClass object
$data = json_decode($json);
echo $data[0]->record_url;


//this will return array with associative array
$data = json_decode($json, true);
echo $data[0]['record_url'];

工作代码：https://3v4l.org/TJNQ1

Answer 2

尝试此代码

var_dump(json_decode($response)->record_url);

Answer 3

请参考以下程序及其相应输出：

$json = '[
{
"id": "474",
"room_id": "14",
"user_id": "20",
"name": "121001.webm",
"fname": "",
"status": "0",
"date_recorded": "October 17 2018 07:18:51",
"size": "396135",
"is_public": "0",
"allow_download": "0",
"privatekey": "",
"duration": "0",
"record_path": "https:example/url/test.mp4",
"record_url": "https:example/url/test.mp4"
}
]';

$array1 = json_decode($json, false);
echo $array1[0]->id //This will print the value of id which is 474.

$array2 = json_decode($json, true);
echo $array2[0]['id'] // This will also print th evalue of id which is 474.

当TRUE时，函数json_decode的第二个参数为boolean，返回的对象将转换为关联数组。

谢谢

从数组中提取json对象

3 个答案: