语法错误：JSON 中位置 0 的意外标记 C - Ionic 2 Http GET 请求

Question

I am trying to perform a GET request and retrieve the data from the response.

this.http.get('http://localhost:8888/maneappback/more-items.php').subscribe(res => {
    console.log(res.json());
}, (err) => {
    console.log(err);
});

I am getting the error SyntaxError: Unexpected token C in JSON at position 0 . I am also assuming that the error is related to the request.

On my server side, I have the data being sent like this (PHP):

echo json_encode($array);

Answer 1

The message you see is that your JSON response is not formatted correctly

GOOD JSON:

{ "name":"John", "age":31, "city":"New York" }

BAD JSON

    { 'name': 'john' }
    { name: "john" }

OR

{ 'name' = 'john' }

In your case, the JSON begins with character C keep in mind that a valid Javascript object could be invalid JSON form

Answer 2

我只是忽略了我在脚本中仍然有两个echo语句......这就是为什么它不被识别为 JSON。

Answer 3

in my case:

previous with error: JSON.parse("{ createdTimestamp: -1 }")

and correct: JSON.parse('{"createdTimestamp":-1}')