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 ''BzZWY1VpUzxWIAooUm1WOlA4UHAGNAEuAC9QewA7DGAEMVIvBCJUOg1zC2AJPFE/B3cAIAdtACkNa1E' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')