Continuation of the question. how to crawl sitemap

Question

PHP

Hello. Continuing this question, I want to clarify some points.
The question is only about the sitemap scan, what is the best way to crawl a sitemap that has more than 100,000 PHP links? days to work and it would probably be better to run them at different times.
Who may have already encountered such a question, I understand that few people do it in php (or maybe they don’t do it at all), but so far I normally only know it and for the first time, roughly speaking, you need to do it in php.