extend authentication to a sub folder which is using a different php framework

  authentication, codeigniter, php, symfony

I’m using Codeigniter for my main project which also contains a sub-folder that has another project in Symfony (Kimai). I would like to use a single sign-in both in my main project (CodeIgniter) and the sub-folder (Symfony).

Both of these frameworks’ auth mechanisms differ. What I want is that whenever a user authenticates into my main project, my Symfony project shouldn’t need to ask for the auth again.

What I’ve tried so far:

I tried using curl to make auth.

Source: Symfony Questions