Mine

<?php
$fp = fsockopen("dac.nic.uk",2043, $errno, $errstr, 30); if (!$fp)
  {
  echo "$errstr ($errno)<br />\n";
  }
else
  {
  fputs($fp, "domain.co.uk\r\n");
  while (!feof($fp))
    {
    echo fgets($fp, 128);
    }
  fclose($fp);
  }
?>