How to crawl a website and test for both php and js errors?

I am a bit fluent in using Dusk and using CypressJs for testing...

But now I've the need to convert a huge monolithic legacy procedural php website, over 35k php files to php 8.1.

So we have the idea to 'crawl' the home of the site, accessing it locally, and the go on recursively crawling each internal link.

Is there anything you know able to report both php and js errors?

If not, is there a crawler able to also report php errors?

I want to change my job. I hate this codebase.. it's a total shit