如何使用名称空间访问子类的函数？

Question

So, I have a few classes I'm trying to use PHP's namespaces with and am having some trouble accessing the functions in the lowest level class.

Here's how it's laid out...

Activity -> Post

Activity has a namespace of activity and Post has a namespace of post

At the top of my Post class I have this code.

namespace Post;
use activity\activity;

That's the code that PHPStorm created when I made my class file and then extended my Activity class.

So, when I try to access my public functions inside Post, I have tried both of these methods...

\activity\post::function();

AND

$post = new \activity\post();
$post->function();

But PHPStorm tells me neither of those exist.

So, what's the actual way to access these lower level functions?

I've googled quite a bit but apparently I'm not searching for the right thing because I haven't found anything about sub classes.

Thanks so much for your help in understanding how this works.

Answer 1

Don't use \\activity , use activity .

\\activity is using the \\ (or base) namespace.

Use doesn't extend a class, it creates an alias. Since you have Use activity\\activity this makes it so you can access functions in the activity class by running activity::function() rather than using the full namespace \\activity\\activity::function() .

You can also define use \\activity\\activity as test and access functions like test::function() .

I'm not sure of the point of having the namespaces the same name as the classes though but sjagr addressed that in comments.