Avant session_start()
session.save_handler = user
session.save_path    = /home/clients/f2f4235bb1ca957203d5322603bd232c/tmp
session_status       = 1
session_id           = 
included files
/home/clients/f2f4235bb1ca957203d5322603bd232c/web/libraries/joomla/session/handler/joomla.php
/home/clients/f2f4235bb1ca957203d5322603bd232c/web/libraries/joomla/session/handler/native.php
/home/clients/f2f4235bb1ca957203d5322603bd232c/web/libraries/joomla/session/handler/interface.php
/home/clients/f2f4235bb1ca957203d5322603bd232c/web/libraries/src/Session/Session.php
/home/clients/f2f4235bb1ca957203d5322603bd232c/web/libraries/joomla/session/storage.php
/home/clients/f2f4235bb1ca957203d5322603bd232c/web/libraries/joomla/session/storage/database.php

session.save_handler = user