Hello, I wrote the code on the local Open Server, the main page does not connect, displays a 404 page?

Question

Mobile development

require_once "content/header.php";
require_once "content/nav-menu.php";
require_once "content/header.php";
require_once "content/content.php";
require_once "content/foter.php";
';
}
function bottom() {
echo '

Answer 1

in addition to 404, the server can give out a bunch of different errors
more here

Answer 2

If this is a local server, then you should test locally on the emulator.
My ios simulator normally walks over HTTP