How can I hide PHPSESSID cookie like facebook and other big sites?

How can I hide the PHPSESSID cookie? When I set session.use_cookies to 0 in php.ini, I can't use the sessions. Sites like Facebook does'nt show PHPSESSID cookie but when I redirect a file using code - header('Location: https://ift.tt/2P0fF0S); - to Facebook to get sessionid from url and i get the session id. Give me the reason.