PHP creating new session with each reload

Question

For my website, session management mostly works ok. Sessions are created, saved and used later without problems.

But when the code is using session_start(), it alway

Answer 1

I'd hate to be the stick in the mud, but have you checked that /tmp is both readable and writeable by PHP (in most cases, this means the www-data user)? If not, move the session save location to a location that you can write to.