A callback triggered when user is created or added to the system.

~~~
<?php
function my_component_init(){
ossn_register_callback('user', 'created', 'my_component_user_created_cb');
}
function my_component_user_created_cb($callback, $type, $variables){
$guid = $variables['guid']; //contains the GUID of newly created user
}
ossn_register_callback('ossn', 'init', 'my_component_init');

~~~