elgg_set_page_owner_guid($guid)
Set the guid of the entity that owns this page.
elgg_echo($message_key, $args=array(), $language="")
Given a message key, returns an appropriately translated full-text string.
elgg_set_context($context)
Sets the page context.
elgg_deprecated_notice($msg, $dep_version, $backtrace_level=1)
Sends a notice about deprecated use of a function, view, etc.
elgg_push_context($context)
Push a context onto the top of the stack.