UCL Questions

This is a really vague question. Also plenty of people who aren't UCL students could answer this - in fact if you did your research you should be able to answer this yourself.
Ultimately you will need A-levels or an equivalent level 3 qualification such as IB. AS levels alone are not sufficient.
Some degree subjects may require particular subjects be studied in your A-levels/equivalent; others may not. This is dependent on what subject you apply to which will be dependent on your personal interests.
You really need to provide some more context and information to get any substantive answer to this question though.

Hi i know i could have saved time by answering this question myself but I just thought it could save myself time of endless researching. Anyways I'm open to some tips of what content and information to get a substantive answer to the question is posted. 🙂

Honestly just start with the UCL website, they have lots of information about that
UK universities are pretty transparent about their requirements and what qualifications you need.
First step is figuring out what course you want to study though, then check the requirements for that specific course.

Ok thanks. I'm looking to get a PHD from the uni at most not only a degree. So would I do a graduate course without doing a undergraduate or any other type of course to get a PHD? 🤔

You need to do an undergraduate degree before you apply to do a PhD - you can do your undergrad at UCL or elsewhere before doing a PhD at UCL. Some PhD programmes may need a masters as well, which again need not necessarily be at the same uni as either the undergrad or the PhD.

Ok so i would need to apply for a undergraduate or a masters first to get on a PHD just to confirm? Because if I need to apply for masters which higher than a undergraduate then why not just apply for the masters even though I've never been to uni before?