Just a hobby project, NOT FOR PRODUCTION! See R.E. Login to understand why this project is here at all.
R.E. DBObjects was started in 2012 as a project which helped me to learn about ORM when I probably didn't even know what ORM was. I used it mainly in R.E. Login, which became popular mainly among other beginners, and people still find me from time to time to ask me if I would ever continue the project.
I don't encourage anyone to use R.E. Login or R.E DBObjects today, but now, in 2022, 10 years after abandoning these project, I decided to add some fixes to make it work in a container with older PHP versions as a demonstration how Docker can help us, and then make it work with recent PHPs as well.
Other possible improvement could be and probably will be translating it to English.
This is only a hobby project, so if you are looking for a stable library to work with real ORM, you can try Doctrine. It is also used by Symfony, which is a popular PHP Framework. You can also try to search for similar tools on Packagist.