Is it a problem develop wordpress settings page in html? When i search the internet and github, i found (almost) tutorials how build a settings page in OOP.
I have a book 'Wordpress Plugin Development' https://www.amazon.com/Professional-WordPress-Plugin-Development-Williams/dp/0470916222 but is a bit outdated (print in 2011) and i don't know if some functions are depricated.
I have also the book 'Pro Wordpress Design and Development', print in 2015. In the last book they build a settings page NOT in OOP, but build in html.
Is it a problem building a settings-page with html and not in OOP? Is this future-proof?