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stojg/session_timeout.php

Created May 27, 2014 22:05
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session timeout
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session_timeout.php
<?php
function start_session($timeout = 1800)
{
session_cache_limiter(false);
session_start();
ini_set("session.gc_maxlifetime", $timeout);
if (isset($_SESSION['lastSeen'])) {
$heartbeatAgo = time() - $_SESSION['lastSeen'];
$timeLeft = $timeout - $heartbeatAgo;
if ($timeLeft < 0) {
$_SESSION = array();
}
}
$_SESSION['lastSeen'] = time();
}
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