if ($session_exists) {
$r = q("UPDATE `session`
SET `data` = '%s', `expire` = '%s'
- WHERE `sid` = '%s'",
- dbesc($data), dbesc($expire), dbesc($id));
+ WHERE `sid` = '%s'
+ AND (`data` != '%s' OR `expire` != '%s')",
+ dbesc($data), dbesc($expire), dbesc($id), dbesc($data), dbesc($expire));
} else {
$r = q("INSERT INTO `session`
SET `sid` = '%s', `expire` = '%s', `data` = '%s'",