Box\Spout\Reader\Common\XMLProcessor::invokeCallback PHP Method

    private function invokeCallback($callbackData, $args)
    {
        $reflectionMethod = $callbackData[self::CALLBACK_REFLECTION_METHOD];
        $callbackObject = $callbackData[self::CALLBACK_REFLECTION_OBJECT];
        return $reflectionMethod->invokeArgs($callbackObject, $args);
    }