Description:
------------
opendir() triggers 2 warnings when used with ftps:// wrapper URLs and fails.

fopen() works with files contained within the directory I am trying to open.

If opendir() is not designed to work with ftps://, I would request this as a feature (since ftp_ssl_open() does not work in standard Windows builds).

Test script:
---------------
<?php

  // This works
  $fp = fopen("ftps://$user:$pass@$host:$port/$file");
  while ($part = fread($fp,1024)) $filedata .= $part;
  fclose($fp);
  print("Downloaded file:\n$filedata");

  // This doesn't work, triggers 2 warnings
  print("\n\nDirectory listing:\n");
  $dp = opendir("ftps://$user:$pass@$host:$port/");
  while ($file = readdir($dp)) print("$file\n");
  closedir($dp);

?>

Expected result:
----------------
Downloaded file:
<contents of file>

Directory listing:
<list of files>

Actual result:
--------------
Downloaded file:
<contents of file>

Directory listing:
Warning: opendir(): SSL/TLS already set-up for this stream in <script path> on line 11
Warning: opendir(ftps://...@host:port/): failed to open dir: Unable to activate SSL mode in <script path> on line 11