register_error($error)
Display an error on next page load.
system_message($message)
Display a system message on next page load.
forward($location="", $reason='system')
Forward to $location.
can_edit_access_collection($collection_id, $user_guid=null)
Can the user change this access collection?
delete_access_collection($collection_id)
Deletes a specified access collection and its membership.
elgg_echo($message_key, $args=array(), $language="")
Given a message key, returns an appropriately translated full-text string.