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Question by zakdank · Nov 18, 2017 at 12:47 PM · textarrayssplit2d array

Splitting text into 2D array

This is probably something super simple but I have spent too much time trying to get it to store correctly.


Basically I have PHP script that returns rows from an SQL database. The format for the data is like so;

 "world server 1|127.0.0.1|7544@world server 2|127.0.0.1|7545@"

What I want to do is split the string into an array so that I can call for, say, the port of the first worldserver. For example worlds[0][2] would return 7544.


What I have tried so far is not working;

     private string[][] worldData;
     private string phpfileURL = phpLocation + "worldSelect.php";
 
     public void fillWorldList()
     {     
         worldList.options.Clear();
         StartCoroutine(getWorlds());
     }
 
     private IEnumerator getWorlds()
     {
         WWW worlds = new WWW(phpfileURL);
 
         yield return worlds;
 
         parseWorldData(worlds.text);
 
     }
 
     private void parseWorldData(string worldsdata)
     {
         string[] lines = worldsdata.Split('@');
         string[] values = worldsdata.Split('|');
 
         worldData = new string[lines.Length][3];
 
         for (int i = 0; i < lines.Length; i++)
         {
             for (int j = 0; j < values.Length; j++)
             {
                 worldData[i][j] = values[j];
 
                 Debug.Log(worldData[i][j].ToString());
             }
         }
     }

It throws an error:

 NullReferenceException: Object reference not set to an instance of an object
 (wrapper stelemref) object:stelemref (object,intptr,object)
 WorldSelect.parseWorldData (System.String worldsdata) (at Assets/Scripts/SQL/WorldSelect.cs:41)
 WorldSelect+<getWorlds>c__Iterator0.MoveNext () (at Assets/Scripts/SQL/WorldSelect.cs:26)
 UnityEngine.SetupCoroutine.InvokeMoveNext (IEnumerator enumerator, IntPtr returnValueAddress) (at C:/buildslave/unity/build/Runtime/Export/Coroutines.cs:17)

It's probably something really simple but I just can't figure it out and can't seem to find examples of something similar being done. Thanks in advance.

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Answer by Hellium · Nov 18, 2017 at 02:48 PM

 private void parseWorldData(string worldsdata)
 {
         string[] worlds = worldsdata.Split(new char[]{'@'}, StringSplitOptions.RemoveEmptyEntries);
         worldData = new string[worlds.Length][];
         
         for( int i = 0 ; i < worlds.Length ; ++ i)
         {
             worldData[i] = worlds[i].Split( new char[]{'|'}, StringSplitOptions.RemoveEmptyEntries ) ;
             
             for( int j = 0 ; j < worldData.Length ; ++ j)
             {
                  Debug.Log( worldData[i][j] ) ;
             }
         }
 }
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avatar image zakdank · Nov 18, 2017 at 03:00 PM 0
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I actually just figured this out now and was coming to post a reply but you beat me to it. Thanks!

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