How do you know if a page has been updated?

Question

PHP

Using symfony/dom-crawler I parse the table. How do I know that new records have been added to the table and get them? Of course, I did, but I think that it was nagovnokodil - I take the results from the database and compare them with what is now in the table.

Answer 1

last modified if it is returned correctly.
If not, you will have to compare, yes.