JSON Prase Error: Invalid value

Unity Engine
1

I’m trying to create a register/ login system for my game. I’m following a tutorial. Everything had been working great, until I tried to implement using a User class create from JSON instead of just grabbing the values directly from the JSON array (commented section towards end of code). I keep getting the error mentioned in the title. Here is my code snippet:

[Serializable]
public class User{
    public bool success;
    public string error;
    public string email;
}

    private IEnumerator RequestLogin(){
        string email = textInputEmail.text;
        string password = textInputPassword.text;

        form = new WWWForm ();
        form.AddField ("email", email);
        form.AddField ("password", password);

        WWW w = new WWW ("http://localhost/action_login.php",form);
        yield return w;

        if (string.IsNullOrEmpty (w.error)) {
            User user = JsonUtility.FromJson<User> (w.text);
            if (user.success == true) {
                if (user.error != "") {
                    textFeedback.text = user.error;
                } else {
                    textFeedback.text = "Login successful.";
                }
            } else {
                textFeedback.text = "An error occured.";
            }
        }


        /*
            if(w.text.Contains("invalid email or password")){
                textFeedback.text = "Invalid email or password.";
            }else{
                textFeedback.text = "Login successful.";
            }
        } else {
            //error
            textFeedback.text = "An error occured.";
        }
*/
    }
2

What line is casting the error and what does the w.text look like?

1 Like
3

Thank your for the reply. I haven’t programmed in a while and completely forgot the power of printing debug statements to the console. I printed w.text to the console, and it turned out that I had some test echo statements in my PHP that were being sent via the JSON object. Therefore the JSON parser couldn’t understand it. I removed them and now it is only sending the proper values, and all is working well.

4

Okay, glad you got it sorted. Best of luck.