thinkphp: Check if session is out of date

1. Create session

1      Public function Index () {2         $sess _time= time(); 3         Session ('name','Andy'); 4         Session ('time_stamp', $sess _time); 5     }

2. Check if session is out of date

1     /**2 * Check if session expires (30 minutes)3      */4      Publicfunction Checksesstime () {5         if(!$_session) {6Header'Content-type:text/html;charset=utf-8');7Die'');8         }9$sess _end_time=time ();//take the current timeTen         //reads the timestamp in the session One         ifC'Session_prefix')){//if the session has a prefix A$sess _time=$_session[c ('Session_prefix')]['Time_stamp']; -}Else{//If the session does not have a prefix -$sess _time=$_session['Time_stamp']; the         } -         //session expires in 30 minutes . -         if($sess _time+ -* -<$sess _end_time) { -SessionNULL); +         } -}

thinkphp: Check if session is out of date