/**
* Tries to find any session id in $_GET, $_POST or $_COOKIE
*
* @static
* @access private
* @return string Session ID (if exists) or null
*/
function detectID()
{
if (HTTP_Session::useCookies()) {
if (isset($_COOKIE[HTTP_Session::name()])) {
return $_COOKIE[HTTP_Session::name()];
}
} else {
if (isset($_GET[HTTP_Session::name()])) {
return $_GET[HTTP_Session::name()];
}
if (isset($_POST[HTTP_Session::name()])) {
return $_POST[HTTP_Session::name()];
}
}
return null;
}
function useCookies()
{
return isset($_COOKIE[HTTP_Session::name()]);
}
