how to pass user info to diffrent pages using sessions?

[keith23]

Hi all i wonder how i can pass user information such as login name to diffrent pages using sessions. My intention is that i want in diffrent pages the php pages automatically knows who is using the page and where user log name is necessary it is avaliable by just doing echo $username or using $username in queries.Furthermore, i want the sessions some how expire within 15 min or so.I be happy if an expert show me how i can create sessions and how to use it in php pages for above purpuse. Thanks

 

[jpadie]

sessions are a big subject. read up on them in

http://www.php.net

and also in the FAQ section:

http://www.tek-tips.com/faq.cfm?pid=434

broadly:
1. use session_start() at the top of every page
2. store things in the session by using $_SESSION['elementname'] = 'element value'
3. delete session elements by using unset($_SESSION['elementname'])
4. destroy sessions altogether by going unset ($_SESSION); session_destroy();