使用 cURL 获取 JSON 响应

Question

太不可思议了，我不知道我做错了什么，但我已经为此苦苦挣扎了几天。

这是来自 de 命令行的 cURL 请求：

curl -i -H "Accept: text/html" http://laravel.project/api/v1/users/4

哪个返回

HTTP/1.1 200 OK
Server: nginx/1.6.2
Content-Type: application/json
Transfer-Encoding: chunked
Connection: keep-alive
Cache-Control: no-cache
Date: Sun, 29 Mar 2015 10:33:36 GMT
Set-Cookie: laravel_session=eyJpdiI6ImNPTkZIYVJZSVRKaHBOZTR3SWh0dHc9PSIsInZhbHVlIjoiblpZYVJlN2dBY1ljejNIYUQycXpsNXRWd1I5a3JSRG8wSWdDOWlHVTMrYUcrdDBNVmVuZUNkOGtJb2M4bXFpTFF3cUdoTFZOVXBWXC82Q1luSGd5bjJBPT0iLCJtYWMiOiI0ZTEwOWQxMmVhMzY2NjI1Yzc1MTBmZmRmYjUyOGQwNDlhYzRjOTNiM2FiOWIyN2E1YjA0OTM4YTUxZmNmMzMzIn0%3D; expires=Sun, 29-Mar-2015 12:33:36 GMT; Max-Age=7200; path=/; httponly

{
"data":{
  "id":4,
  "name":"Helena",
  "email":"hh@gmail.com",
  "created_at":"2015-03-26 21:13:16",
  "updated_at":"2015-03-26 21:13:16"
  }
}

所以一切看起来都很好，内容类型设置正确，响应是 JSON。但是现在看看如果我在 PHP 中使用 curl 使用 API 会发生什么。

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $final_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/json'));
$result = curl_exec($ch);

return json_decode($result);

我得到这个回应：

{#165
  +"data": {#167
    +"id": 4
    +"name": "Helena"
    +"email": "hh@gmail.com"
    +"created_at": "2015-03-26 21:13:16"
    +"updated_at": "2015-03-26 21:13:16"
  }
}

如果我在没有 json_decode 的情况下返回 $result 我得到这个：

"{
  "data":{
    "id":4,
    "name":"Helena",
    "email":"hh@gmail.com",
    "created_at":"2015-03-26 21:13:16",
    "updated_at":"2015-03-26 21:13:16"
  }
}"

正确的响应但在引号内，我在 phpdocs 中读到 curl_opt_returntranfer 将结果作为字符串返回，但我不能是这个星球上唯一想要获取 json 的人。

请帮忙

编辑 1

这是我的 ApiController 类

curl -i -H "Accept: text/html" http://laravel.project/api/v1/users/4

这是我的用户控制器

HTTP/1.1 200 OK
Server: nginx/1.6.2
Content-Type: application/json
Transfer-Encoding: chunked
Connection: keep-alive
Cache-Control: no-cache
Date: Sun, 29 Mar 2015 10:33:36 GMT
Set-Cookie: laravel_session=eyJpdiI6ImNPTkZIYVJZSVRKaHBOZTR3SWh0dHc9PSIsInZhbHVlIjoiblpZYVJlN2dBY1ljejNIYUQycXpsNXRWd1I5a3JSRG8wSWdDOWlHVTMrYUcrdDBNVmVuZUNkOGtJb2M4bXFpTFF3cUdoTFZOVXBWXC82Q1luSGd5bjJBPT0iLCJtYWMiOiI0ZTEwOWQxMmVhMzY2NjI1Yzc1MTBmZmRmYjUyOGQwNDlhYzRjOTNiM2FiOWIyN2E1YjA0OTM4YTUxZmNmMzMzIn0%3D; expires=Sun, 29-Mar-2015 12:33:36 GMT; Max-Age=7200; path=/; httponly

{
"data":{
  "id":4,
  "name":"Helena",
  "email":"hh@gmail.com",
  "created_at":"2015-03-26 21:13:16",
  "updated_at":"2015-03-26 21:13:16"
  }
}