ReflectionFunctionAbstract::getClosureThis Returns this pointer bound to closure &reftitle.description; public objectnullReflectionFunctionAbstract::getClosureThis If the function is a non-static closure, get the object bound to $this inside the closure. &reftitle.parameters; &no.function.parameters; &reftitle.returnvalues; Returns $this pointer. Returns &null; in case of an error.