IMAP: How to list an INBOX's sub folders

I have a problem accessing the folders I have created within my INBOX.

At present I have created a numebr of subfolders within my mail box. When I then access the mailbox using the imap functions I can only return the messages stored in the root folder. i.e.

   INBOX
      |
      |- SPAM
      |
      L INFO

I can access all information stored in the root of INBOX but not see or access any messages stored in SPAM or INFO.

I am using the following code:-

<?php

      $mbox = imap_open ("{SERVER:110/pop3}", "MyUserName", "MyPassWord") or die("can't connect: ".imap_last_error());
      
      $list = imap_list($mbox,"{SERVER:110/pop3}","*");
      if(is_array($list))
      {
            reset($list);
            while (list($key, $val) = each($list))
            {
                  print imap_utf7_decode($val)."<br>\n";
            }
      }
      else
            print "imap_list failed: ".imap_last_error()."\n";
      
      $BoxList = imap_getmailboxes($mbox,"{SERVER:110/pop3}","*");
      print_r($BoxList);
      while (list($key, $val) = each($BoxList))
      {
            print "($key) ";
            print imap_utf7_decode($val->name).",";
            print "'".$val->delimiter."',";
            print $val->attributes."<br>\n";
      }       
      imap_close($mbox);
?>

I am using these functions on POP3 and have found that some of the functions dont work as they were written for IMAP. Yet can someone please confirm that either I cant do this or help me out in some way??