Go\Aop\Framework\ReflectionFunctionInvocation::proceed PHP Method

    public function proceed()
    {
        if (isset($this->advices[$this->current])) {
            /** @var $currentInterceptor Interceptor */
            $currentInterceptor = $this->advices[$this->current++];
            return $currentInterceptor->invoke($this);
        }
        return $this->reflectionFunction->invokeArgs($this->arguments);
    }