How do you add a timeout to the WWW class?

Question: How do you add a timeout to the WWW class?

Explanation: Currently I’m creating an account system where it connects to a server/file in php format. If the server is down, how would I go about creating an error?

If the server is down, the request won’t be successful so you will get an error.

WWW www = new WWW(url);                                                 
yield return www;
if(www.error != null)print (www.error);

You can also create your own time out:

WWW www = new WWW(url);  
float timer = 0; 
bool failed = false;
                   
while(!www.isDone){
     if(timer > timeOut){ failed = true; break; }
     timer += Time.deltaTime;
     yield return null;
}
if(failed)www.Dispose();

The above needs to be tested for confirmation that it works.

The Best Answer does not work on iOS and its not correct.

This will work:

IEnumerator DownloadFileWithTimeout(string URL)
{
                    WWW www = new WWW(URL);
                    float timer = 0;
                    float timeOut = 10;
                    bool failed = false;
        
                    while (!www.isDone)
                    {
                        if (timer > timeOut) { failed = true; break; }
                        timer += Time.deltaTime;
                        yield return null;
                    }
                    if (failed || !string.IsNullOrEmpty(www.error))
                    {
                        www.Dispose();
                        yield break;
                    }
}