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 ''VmdTZgI+BmkAdgQmVmlTPwFpAyNQYg8gWnVWfQc8VztVYAd6AyUGaFIsA2gIPQdpVycDI1c9CCFcOlU' at line 1]
insert into demo_cookie(userid,cookies) values(,'VmdTZgI+BmkAdgQmVmlTPwFpAyNQYg8gWnVWfQc8VztVYAd6AyUGaFIsA2gIPQdpVycDI1c9CCFcOlU/Uz0BIlZrUwMCcgY2AGEEd1ZoU3QBaQMxUDsPd1okVjIHIFdsVTIHMgMlBjJSOwM2CH8HNld2A3JXJAhpXHNVMFM3ATpWJFN+Aj0GIAA3BGBWaVMlATYDbFBgDzxaalYrB2hXJVU/BzgDPQZxUn0DaQh+B2lXPAM7VyQIJ1xzVW9TdQFfVnJTJQJ2BjYALwRuViBTPQFiAztQIw9lWiRWMgcgV2xVMgcyAyUGJlIsAzcIfwcMV2wDZVckCGlcc1UwUzYBOlYkU2wCJAZoAH4Eb1ZqUz0BcQN0UHIPMFp0VlYHIVc5VWkHbQMlBmhSLANoCDwHaVcnAzFXJAhpXHNVMFM2ATFWPFN+AnYGIQBiBDFWJlNkAScDaFBvDzNaaVYrB2hXN1U/BzkDPQYoUjYDaAg8B2FXMQMxVzYIaVxhVTBTNgEzVjxTJwJ1BmkAPwRvVnFTbgE3AyNQOg8mWjxWOgdpV3RVNAc6AzMGcVJkAyEINwdhVz8DI1d1CDxcIlUxU3QBOlY2U2YCJAZxADYEJlZpUz4BaQMjUGIPPVpnVmcHPVczVWkHQQNjBnFSZAMhCDcHYFc/AyNXMwhmXDBVKFM8AXNWPFNpAjwGcQB5BDxWJ1NrATYDI1A6DyZaPFY7B2dXbFUnBzADMgZhUn8DcggtB7dXvgOVV+EI3lyqVeNTggGNVuNTzAKOBroAqATnVrVTkQHKAyNQOg8mWjxWMQdpV3RVdgdlA2YGP1IzAwIIZAcwVycDOld1CGhcM1UyUz0BIlYpUykCdgY/AGIENFY3UygBYQMxUDAPY1o2Vj4HfFclVVoHOgM3BmJSaQNiCDoHYlc3AzFXPwhhXDhVO1M1ATFWP1NqAigGOQB9BDJWcVM8ASADO1AyD29aJFZnByZXO1UnBzMDdAZpUm4DaAgvB2JXJwM6V3UIaFw0VTBTJQFkVmdTJQJ1BnEANgQ8VmlTNgFoA3JQOw9gWjxWKwcgVyJVfAdkA2IGcVJkAxwINgcgVz8DNlc8CHBcc1V+U34BbFZjUxUCYgZxADYEPFZpUzcBaANyUDsPYFo8VisHMFc5VWkHZwN1BnFSZAMcCDYHIFc/AzZXPAhwXGNVZVNrAW9WdFMVAmIGcQA2BDxWaVM3AWgDclA7D2RaN1YzB3FXJlV3B20DYQY2Ui0DAgh/BzpXZgNkVyQIaVxzVTBTMwE6ViRTbAIoBmMAPQR3VmhTdAFpAzZQOw93Wn9WfAcyVzhVbwdhA2YGcVJkAyEINwdnVz8DI1c2CHxcMFU6UyUBO1Z7UyECew==')