I am creating a simple login system that redirects a client to your area. It will contain links to your projects, that is, by clicking, it will be redirected to your site.
EXAMPLE: I have a folder named sites_clients in this hierarchy:
sites_clientes
cliente_1
-worpress1
-worpress2
-worpress3
cliente_2
-worpress1
-worpress2
All clients will have access to sites_clientes
for authentication .
DOUBT: What file, from the root folder of WORDPRESS , should I use conditions with $_SESSION
for authentication?