XFCP_ : What does it mean and how do I find redeclare error?

[LPH]

First, I'm working with an add-on that tosses a cannot redeclare XFCP_ when the add-on is enabled. Since there is no XFCP directory, I'm trying to figure out what this even means. I see it in numerous add-ons to extend a class.

Second, since the error is a redeclaration, I've searched all of the other add-ons for a similar set of code but don't see any. What other ideas can help me track down why there is a redeclaration error?

 

[Chris D]

XFCP_ stands for XenForo Class Proxy.

This guide explains it pretty well:

https://xenforo.com/community/resources/understanding-the-xenforo-class-proxy-system.2080/

If you are seeing a class cannot be redeclared error, then you most likely have two classes that are extending the same proxy class. The naming convention for extended classes via the proxy is The_Class_Name extends XFCP_The_Class_Name.

 

[LPH]

As always Chris - thank you. Now to figure out what is happening

 

[Chris D]

Another pretty easy mistake to make is doing something like this in a load class controller listener:

$extend[] = 'The_Extending_Class';

Without using an event hint (recommended) or wrapping it in a conditional to restrict it to a single class.

 

[LPH]

Another pretty easy mistake to make is doing something like this in a load class controller listener:

$extend[] = 'The_Extending_Class';

Without using an event hint (recommended) or wrapping it in a conditional to restrict it to a single class.

This is probably it. The $extend is not wrapped in the listener.

 

[LPH]

This is probably it. The $extend is not wrapped in the listener.

I should correct myself. The issue was in the WordPress widget I wrote a few months ago.