Class 4: CCIS2630 PHP; Session Basics

oh, the agony of a stateless protocol
What's a cookie?
cookies allow us to maintain session info
Client gets a cookie with unique information
Server keeps a log of cookies and corresponding session data
Client submits session data with each page request
When server find a match, it restores it will restore that information into the current request and continue on.
No cookies? No problem: PHP will automatically create and append a sessionID to each link and form which is then sent over the net.