INSERT INTO carrello(session, user, prodotto, quantita, ip, data_aggiunta) VALUES ('94d528ca4c7c4e49a78038243411d4e3', , 585, 1, '54.224.118.247', NOW() ) ON DUPLICATE KEY UPDATE user=user
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' 585, 1, '54.224.118.247', NOW() ) ON DUPLICATE KEY UPDATE user=user' at line 1