How do PHP sessions work when cookies are disabled?

Question

I\'ve tried to research this mechanism but only find hints and these are not very consistent. How is the session _id sent to the browser and how is the browser instructed to

Answer 1

Sessions work by creating a unique id (UID) for each visitor and store variables based on this UID. The UID is either (1) stored in a cookie or (2) is propagated in the URL.