Is there a way to achieve the user registration on the jabber server (ejabberd: ejabberdctl register user host password) through XMPPHP library?

I found user registration function for XMPPHP_XMPP.php (http://pastebin.com/CTLpLHnY)

and called it in my code as follows:
$conn = new XMPPHP_XMPP($this->config->item('xmpp_host'), $this->config->item('xmpp_port'), $this->config->item('xmpp_admin_username'), $this->config->item('xmpp_admin_password'), 'xmpphp', $this->config->item('xmpp_server'), $printlog=$this->config->item('xmpp_log'), $loglevel=XMPPHP_Log::LEVEL_VERBOSE);
try {
$conn->connect();
$conn->registerNewUser($username, $passwd);
$payload = $conn->processUntil('new_user_registered');
$credentials = $payload[0][1];
$conn->disconnect();
}
catch(XMPPHP_Exception $e) {
//die($e->getMessage());
}

Although it only dose the registration partially(although I see the newly registered user through jeabberd admin interface I cannot send any messages to that user throuth the PHP) and if I run the same code within few time gaps it fails also if I try to communicate to the ejabberd with the username and password it fails to send the message.

Appreciate if you can suggest me a lead on how to overcome this issue.

Many thanks,
Hayesha

Thnx
Abhishek

You, good sir, are a gentleman and a scholar.

Thanks again
Jop