expire session when there is no activity in PHP -


i found many tutorials on internet when expire session after limit, after 30 minutes or so, want expire session when there no activity, quoting famous question the solution straight forward:

if (isset($_session['last_activity'])      && (time() - $_session['last_activity'] > 1800)) {         // last request more 30 minutes ago         session_unset();     // unset $_session variable run-time          session_destroy();   // destroy session data in storage     } $_session['last_activity'] = time(); // update last activity time stamp

but have update $_session['last_activity'] on each request?

the pre-assumed answer yes, have big site containing 200+ php pages , it's hectic update $_session['last_activity'] on each request.

is there other way of doing this? common thing among files 1 config file db connection.

you update $_session['last_activity'] (eg) once per minute session not destroyed after 30 minutes.

if (isset($_session["last_activity"])) {     if (time() - $_session["last_activity"] > 1800)) {         // last request more 30 minutes ago         session_unset();     // unset $_session variable run-time          session_destroy();   // destroy session data in storage     } else if (time() - $_session["last_activity"] > 60) {         $_session["last_activity"] = time(); // update last activity time stamp     } }

and easiest way put code in config file since don't think want change 200 php files.


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