What are the potential conflicts that can arise when different PHP applications on the same server require different session.auto_start settings?

When different PHP applications on the same server require different session.auto_start settings, conflicts can arise because this setting determines whether the session is automatically started on each page load. To solve this issue, you can manually start the session in each application's code where it is needed, instead of relying on the server-wide setting.

// Application 1
session_start();
// Rest of the code for Application 1

// Application 2
if(!isset($_SESSION)) {
    session_start();
}
// Rest of the code for Application 2