(PHP 5, PHP 7) Invokes function public mixed
(PHP 5 >= 5.1.0, PHP 7) Invokes function args
(PHP 5, PHP 7) Exports function public static
(PHP 5, PHP 7) Checks if function is disabled
(PHP 5, PHP 7) Constructs a ReflectionFunction object
(PHP >= 5.4.0) Returns a dynamically created closure for the function
(PHP 5, PHP 7) To string public string Refle