Viewing file:  lib-sessions.inc.php (4.26 KB) -rwxr-xr-x
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<?php // $Revision: 1.10 $
/************************************************************************/
/* phpAdsNew 2 */
/* =========== */
/* */
/* Copyright (c) 2001 by Niels Leenheer */
/* http://sourceforge.net/projects/phpadsnew */
/* */
/* This program is free software. You can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either version 2 of the License. */
/************************************************************************/
/*********************************************************/
/* Fetch sessiondata from the database */
/*********************************************************/
function phpAds_SessionDataFetch()
{
global $phpAds_config;
global $SessionID, $Session;
if(isset($SessionID) && !empty($SessionID) && !defined('phpAds_installing'))
{
$result = phpAds_dbQuery("SELECT sessiondata FROM ".$phpAds_config['tbl_session']." WHERE sessionid='$SessionID'" .
" AND UNIX_TIMESTAMP(NOW())-UNIX_TIMESTAMP(lastused) < 3600");
if($row = phpAds_dbFetchArray($result))
{
$Session = unserialize(stripslashes($row['sessiondata']));
// Reset LastUsed, prevent from timing out
phpAds_dbQuery("UPDATE ".$phpAds_config['tbl_session']." SET lastused = NOW() WHERE sessionid = '$SessionID'");
}
}
else
{
$SessionID = '';
return (False);
}
}
/*********************************************************/
/* Create a new sessionid */
/*********************************************************/
function phpAds_SessionStart()
{
global $SessionID, $Session;
if (!isset($SessionID) || $SessionID=='')
{
// Start a new session
$Session = array();
$SessionID = uniqid("phpads");
SetCookie("SessionID", $GLOBALS["SessionID"]);
}
return $SessionID;
}
/*********************************************************/
/* Register the data in the session array */
/*********************************************************/
function phpAds_SessionDataRegister($key, $value='')
{
global $SessionID, $Session;
phpAds_SessionStart();
if (is_array($key) && $value=='')
{
for (reset($key);$name=key($key);next($key))
{
$Session[$name] = $key[$name];
}
}
else
$Session[$key] = $value;
phpAds_SessionDataStore();
// This function has been disabled because of incompatibility
// problem with ZendOptimizer 1.00. Call sessionDataStore
// manually if have modified the session array.
// register_shutdown_function("phpAds_SessionDataStore");
}
/*********************************************************/
/* Store the session array in the database */
/*********************************************************/
function phpAds_SessionDataStore()
{
global $phpAds_config;
global $SessionID, $Session;
if(isset($SessionID))
phpAds_dbQuery("REPLACE INTO ".$phpAds_config['tbl_session']." VALUES ('$SessionID', '" .
AddSlashes(serialize($Session)) . "', null )");
// Randomly purge old sessions
srand((double)microtime()*1000000);
if(rand(1, 100) == 42)
phpAds_dbQuery("DELETE FROM ".$phpAds_config['tbl_session']." WHERE UNIX_TIMESTAMP(NOW())-UNIX_TIMESTAMP(lastused) > 43200");
}
/*********************************************************/
/* Destroy the current session */
/*********************************************************/
function phpAds_SessionDataDestroy()
{
global $phpAds_config;
global $SessionID, $Session;
// Remove the session data from the database
phpAds_dbQuery("DELETE FROM ".$phpAds_config['tbl_session']." WHERE sessionid='$SessionID'");
// Kill the cookie containing the session ID
SetCookie("SessionID", "");
// Clear all local session data and the session ID
$Session = "";
$SessionID = "";
unset($SessionID);
unset($Session);
}
?>
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