php:使用具有类别名的extends [英] php: using extends with a class alias

问题描述

我在两个不同的命名空间中有类，例如:

I have classes in two different namespaces, for example:

控制器位于\ Core中， 索引位于\ Public

Controller is in \Core, Index is in \Public

在我的index.php中，我具有所有\ Core类的class_alias，因此您可以直接调用它们:$controller = new Controller();.这没有问题.

In my index.php, I have a class_alias for all of the \Core classes, so you can call them directly: $controller = new Controller();. This works without issue.

我的问题是当我尝试扩展课程时.自索引和Controller在不同的名称空间中，它尝试在\ Public名称空间中查找Controller，所以这不起作用:

My problem is when I try to extend the class. Since Index & Controller are in different namespaces, it tries to find Controller in the \Public namespace so this doesn't work:

<?php
namespace Panel\Pub;

class Index extends Controller {

有没有解决的办法，所以我可以在extends函数中使用类别名?我知道我可以使用\ Core \ Controller，并且可以使用，但是我正在尝试使用别名使核心功能更易于访问.

Is there any way around this so I can use the class alias in the extends function? I know I can use \Core\Controller and it will work, but I'm trying to use aliases to make core functions more easily accessible.

修改:找到了一种解决方法 经过更多测试之后，我发现在扩展名的别名前面使用\似乎可以正常工作.不如没有\理想，但目前最好的解决方案是:

Found one workaround After doing some more testing, I found that using \ in front of the alias in the extend seems to work. Not as ideal as no \ but currently the best solution results in:

class Index extends \Controller { }

仍在寻找其他解决方法或扩展控制器的其他方法.

Still looking for other advice on a work around or different method of extending controller.

谢谢！

推荐答案

使用名称空间时，将使用名称空间中的完整路径

When you're using a namespace, you use the full path in your namespace

class Index extends \Public\Controller { }

\代表名称空间的根.

另一种方法是使用use关键字

Another way to do this is to use the use keyword

namespace Panel\Pub;
use \Public\Controller as Controller
class Index extends Controller { }

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