-function base64_url_decode($input)
-{
- return base64_decode(strtr($input, '-_', '+/'));
+ public static function base64_url_encode($input)
+ {
+ return strtr(base64_encode($input), '+/', '-_');
+ }
+
+ public static function base64_url_decode($input)
+ {
+ return base64_decode(strtr($input, '-_', '+/'));
+ }