Mysql event error using php

I'm trying to initiate a MySQL Event using a PHP script. It works using phpMyAdmin (although I get the same error) but not using the script. I get the following error:

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'DELIMITER' at line 1

DELIMITER |
CREATE EVENT myevent21222
ON SCHEDULE AT CURRENT_TIMESTAMP + INTERVAL 5 MINUTE
DO
  BEGIN
    UPDATE `team` SET `reg` = '0' WHERE `id` = '1';
  END |
  # MySQL lieferte ein leeres Resultat zurück (d.h. null Datensätze).
DELIMITER ;

Can anyone figure out the problem?

Is there any alternative for changing data in a database after 5 minutes after a user had done something?