数据库错误: [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

数据库错误: [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=

数据库错误: [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 ''VGUPOgY6B2gDdVByAzwEaFI6BCQAMggnWHcDKFRvAGxZbAV4VXNTPQR6VzwANVE/VCQHJwNpDCVfOVA' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')