title: Objective C - POST data using NSURLConnection
body: <p>I'm very slowly working my way through learning the URL loading system for iOS development, and I am hoping someone could briefly explain the following piece of code:</p>
  
  <pre><code>NSString *myParameters = [[NSString alloc] initWithFormat:@"one=two&amp;three=four"];
  [myRequest setHTTPMethod:@"POST"];
  [myRequest setHTTPBody:[myParameters dataUsingEncoding:NSUTF8StringEncoding]];
  </code></pre>
  
  <p>Eventually I would like to be able to create an application that logs into my ISP's website and retrieves how much data I have left for the rest of the month, and I feel as though I should get my head around setHTTPMethod/setHTTPBody first.</p>
  
  <p>Kind regards</p>