ݿ: [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 'order by id desc limit 1' at line 1]
select cookies from demo_cookie where userid= order by id desc limit 1

ݿ: [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 '' at line 1]
delete from demo_cookie where userid=

ݿ: [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 ''BDUEMVRoVzgEcgclBDtfM1A4UnIHNVxzWHdRegU+BGhQZVYrACZXOVcpBm0DNgBuVCQEJARuAClaPFM' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')