[PHP]如何检查一个类是否在不实例化的情况下继承了另一个类? [英] [PHP]How to check if a class inherits another class without instantiating it?

问题描述

我有一些班级名称. 如何在不实例化的情况下检查一个类是否继承了另一个类?

I have some class name. How to check if a class inherits another class without instantiating it?

 if (!class_exists($controller)) //AND I have check type
        {

            $objectController = new IndexController();
            $objectController->index();
        }

推荐答案

您必须为此使用反射，这是一个很大的主题:

You'll have to use reflection for that, it's pretty large topic:

http://ca.php.net/manual/fr/book. Reflection.php

稍微看一下文档，尝试一些问题，如果仍然有问题，更精确一些，然后针对该主题发布另一个问题.

Look at the doc a little, try something and if you still have questions, something more precise, then post another question on that topic.

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