Cannot implicitly convert type 'char' to 'string'

Hey, so I have a script that returns data from a PHP file, and splits the return data into an array. I have used the same method many times and it has worked fine. I don't know what I'm doing wrong, but I keep getting these errors:

"Assets\_Scripts\LoginUser.cs(429,68): error CS1503: Argument 1: cannot convert from 'string' to 'char'"
AND
"Assets\_Scripts\LoginUser.cs(442,51): error CS0029: Cannot implicitly convert type 'char' to 'string'"
for the ones in the foreach loop. Please help!

Code (CSharp):

1. string questFile = "https://MYWEBSITE.com/GetUserQuests.php";
2.  
3.                     WWWForm questform = new WWWForm();
4.                     questform.AddField("user_id", id);
5.  
6.                     UnityWebRequest questWWW = UnityWebRequest.Post(questFile, questform);
7.                     yield return questWWW.SendWebRequest();
8.  
9.                     if (questWWW.isNetworkError || questWWW.isHttpError)
10.                     {
11.                         Debug.Log(questWWW.error);
12.                         Debug.Log("quest info didn't worked");
13.                     }
14.                     else
15.                     {
16.                         Debug.Log(questWWW.downloadHandler.text);
17. /*LINE 428 */
18.                         string questReturnData = questWWW.downloadHandler.text;
19.                         string[] questData = questReturnData.Split("--");
20.  
21.                         /* 0: mysqli_num_rows
22.                          * 1: quest_log_id
23.                          * 2: quest_id
24.                          * 3: quest_char
25.                          * 4: quest_item
26.                          * 5: quest_item_quant
27.                          * 6: collected
28.                          */
29.  
30.                         foreach (string questReturn in questData) {
31.  
32. /*LINE 442 */
33.                             string quest_log_id = questReturn[1];
34.                             string quest_id = questReturn[2];
35.                             string quest_char = questReturn[3];
36.                             string quest_item = questReturn[4];
37.                             string quest_item_quant = questReturn[5];
38.                             string collected = questReturn[6];
39.  
40.                             Debug.Log("foreach Ran");
41.  
42.                         }
43.                     }

I do understand that I do not start at 0 in my array. This is intentional.

Thanks for any help in advance!

 

questReturn is a string.

questReturn[n] is a char.

You are both iterating the questData collection with your foreach, PLUS you think you are indexing each string from that with [1], [2], etc., but you are actually pulling chars out of the questReturn string.

 

Okay, but how do I fix it?

 

You could just apply .ToString() to the char to make it a string, but I don't think you want that based on what I can infer from your code above, but only YOU know your data.

I recommend you re-visualize your data and decide how you want to go about chopping it up, because I suspect the above code does NOT cut it up in a meaningful way, unless I am mistaken.

 

If each record is separated by a "--" then each questReturn will have all the data you mention in the comments starting on line 21 I'd assume. Not sure how you have that data formatted, but if it is similar to the comment I'd use a regex to grab each individual value you're interested in. Teaching how to use a regex is too big a subject to teach in a forum post, but there's lots of tutorials on it.

 

At a quick glance, it seems to me you don't need the foreach loop as that is selecting characters from strings. It looks to me like you meant to assign the elements from the array which is a result of splitting your string, like so;

Code (CSharp):

1.         string quest_log_id     = questData[1];
2.         string quest_id         = questData[2];
3.         string quest_char       = questData[3];
4.         string quest_item       = questData[4];
5.         string quest_item_quant = questData[5];
6.         string collected        = questData[6];