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 ''WWgCNwA8Uj1WIAUnAj1QPFI6AyNQYl1yXHNedQoxAW1SZwN+DylSPAZ4AGtTZlQ6UyNXdw1nXHVdO1U' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')