/**
* 서버에서 최신버전을 가져온다.
* @return string
*/
public static function getLatestVersion()
{
if (isset($_SESSION['kboard_latest_version']) && $_SESSION['kboard_latest_version']) {
self::$latest_version = $_SESSION['kboard_latest_version'];
} else {
if (!self::$latest_version) {
$data = self::connect(self::$CONNECT_VERSION . '?version=' . KBOARD_VERSION);
if (isset($data->error) && $data->error) {
echo 'null';
} else {
self::$latest_version = $data;
}
}
}
$_SESSION['kboard_latest_version'] = self::$latest_version;
return self::$latest_version;
}
