I’m assuming by “package list”, you mean Packagist?
If so, you can, but make sure that:
- You use your own vendor prefix. In other words, do not use
zendframework/zendframework1, but rather something like
yourcompany/zendframework1. You’ll need to change this in the
composer.json of your fork, and use the same package name when registering with Packagist.
- Make sure you clearly indicate in your fork that it is a fork.
- Retain all copyright and license notices in all files.