如何从JavaScript中的json数组中获取数据？

Question

I have php function, that returns array to JavaScript like this:

    $data['first'] = 10;
    $data['second'] = 20;
    echo json_enocde($data);

In JavaScript the returned value is named response. I need to display the values and tried like this after reading about json:

        alert("First: " + response.first + " Second: " + response.second);

But this code only shows undefined values in places of response.first and response.second. If I write alert(response), then I get answer:

{"first":"10","second":"20"}

This means, that JavaScript is getting the information. How can I get the values separately from the json encoded array?

Regards

Answer 1

Use JSON.parse() to turn the JSON string into a JavaScript object.