$error
Page not found error.
elgg_echo($message_key, array $args=[], $language="")
Given a message key, returns an appropriately translated full-text string.
elgg_view_message($type, $body, array $vars=[])
Wrapper function for the message display pattern.
elgg echo
Translates a string.
elgg_extract($key, $array, $default=null, $strict=true)
Checks for $array[$key] and returns its value if it exists, else returns $default.