elgg_generate_action_url(string $action, array $query=[], bool $add_csrf_tokens=true)
Generate an action URL.
elgg_echo(string $message_key, array $args=[], string $language= '')
Elgg language module Functions to manage language and translations.
elgg_extract($key, $array, $default=null, bool $strict=true)
Checks for $array[$key] and returns its value if it exists, else returns $default.