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 ''BDUANQ8zBWoHcQclAT5QPAFpBiZWZFh3WnVXfAA7BGhXYlEsVnBXOVAuAmkANVE/AHAKKg1nX3YIbgR' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')