user/edit
Z MoodleDocs
$cookies = array();
$names = array(
'MOODLEID_'.$CFG->sessioncookie,
'MoodleSession'.$CFG->sessioncookie,
'MoodleSessionTest'.$CFG->sessioncookie
);
foreach ($names as $name) {
if (isset($_COOKIE[$name])) {
$cookies[$name] = $_COOKIE[$name];
}
}