Is it possible to upload data to a multi-page site using api?

Question

PHP

I would like to know if I can use the API on a multi-page site. Or is using the API only relevant when developing a SPA?

Answer 1

Why not?)
The server can do this:

if (strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
  //вот тебе данные в виде JSON
} else {
  //а вот тебе те же данные, но в виде HTML
}

Answer 2

Yes, it is possible, and even necessary, so as not to reload the page for every sneeze.
It used to be called "ajax" (although it's still called now)