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 ''VmcOOwQ4VzgEclByU2wDbwJqAiIFNw4hCCcFLgE6B2tXYgV4VXNTPVAuC2BWYwJsUiJWdlQ+WHELbQR' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')