A callback triggered when user is deleted from the system. This can be useful to find out which user is deleted in order to delete addtional records.

~~~
<?php
function my_component_init(){
ossn_register_callback('user', 'delete', 'my_component_cb');
}
function my_component_cb($callback, $type, $variables){
$userObject = $variables['entity'];
//contains user object (guid, username, email etc)

}
ossn_register_callback('ossn', 'init', 'my_component_init');
~~~