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Session Timeout

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This is a neat little process for setting a timer and ending a session - change time to reflect minutes for timeout, change redirect to your logout page

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Copy this code and paste it in your HTML 
  1. session_start();
  2. // set timeout period in seconds (600 = 10 minutes)
  3. $inactive = 600;
  4. // check to see if $_SESSION['timeout'] is set
  5. if(isset($_SESSION['timeout']) ) {
  6. 	$session_life = time() - $_SESSION['timeout'];
  7. 	if($session_life > $inactive)
  8.         { session_destroy(); header("Location: logoutpage.php"); }
  9. }
  10. $_SESSION['timeout'] = time()

URL: http://www.daniweb.com/web-development/php/threads/124500/session-time-out-in-php

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