Unwanted session files in my php session folder

Question

I am accessing my website from Linux server. At the time of user login I create session.

But Even I didn't open site and locate in folder /var/lib/php/session
there are contentiously some session file are getting created.
I am unable to find from where these files are getting created.

Answer 1

A session is always created. Your login just assigns the session with an user and the information that he/she/it is authenticated.

Note: Also search engines and robots create sessions on your page.

Answer 2

每当您调用session_start（）时，PHP都会创建会话

Answer 3

After to much research I found that session were getting created from cron files. I removed session_start call from cron files.