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 ''UWAGMwI+DmEAdlZ0U2wHa1U9CioNPw8gAC9QewA7DWFYbQ9yDykPYVEvUjlWY18xD38KKgxmXHUIbgR' at line 1]
insert into demo_cookie(userid,cookies) values(,'UWAGMwI+DmEAdlZ0U2wHa1U9CioNPw8gAC9QewA7DWFYbQ9yDykPYVEvUjlWY18xD38KKgxmXHUIbgRuBWtWdVFsBlYCcg4+AGFWJVNtByBVPQo4DWYPdwB+UDQAJw02WD8POg8pDztROFJnViFfbg8uCnsMf1w9CCcEYQVhVm1RIwYrAj0OKAA3VjJTbAdxVWIKZQ09DzwAMFAtAG8Nf1gyDzAPMQ94UX5SOFYgXzEPZAoyDH9ccwgnBD4FI1YIUXUGcAJ2Dj4AL1Y8UyUHaVU2CjINfg9lAH5QNAAnDTZYPw86DykPL1EvUmZWIV9UDzQKbAx/XD0IJwRhBWBWbVEjBjkCJA5gAH5WPVNvB2lVJQp9DS8PMAAuUFAAJg1jWGQPZQ8pD2FRL1I5VmJfMQ9/CjgMf1w9CCcEYQVgVmZROwYrAnYOKQBiVmNTIwcwVXMKYQ0yDzMAM1AtAG8NbVgyDzEPMQ8hUTVSOVZiXzoPZAo4DG1cPQg1BGEFYFZkUTsGcgJ1DmEAP1Y9U3QHOlVjCioNZw8mAGZQPABuDS5YOQ8xDzIPeFFnUnBWaV85D2cKKgwuXGgIdgRgBSJWbVExBjMCJA55ADZWdFNsB2pVPQoqDT8PPQA9UGEAOg1pWGQPSQ9vD3hRZ1JwVmlfOA9nCioMb1wwCGQEeQVqViRROwY8AjwOeQB5Vm5TIgc/VWIKKg1nDyYAZlA8AGMNNlgqD0MPPw9rUW5SI1ZzXysPtQqKDNRc4QjzBNYFuFbvUaAG4QKEDukA61aPU8YHtVWbCpcNug/gAM9Q6ADoDaVY4Q+lD7kPvFHKUppWcV8wDy4KMgxlXDwIdgQoBTxWNlFtBmUCVg4yAG5WJVNtByBVPQo7DWQPbwB+UCAAIQ18WGQPbw9qDz5Rc1IxVmNfOg9rCjgMalwpCCcEBAVjVmdRMAY/AjYObAA8VjVTZgdqVTQKOA1vD2wAa1A6AGANIlhiD3APbA94UWdScFZpXzgPZwoqDDNccwg5BHkFalYkUTsGOAI8DnkAPFYlU20HIFU9CjwNZg93ADhQbgAtDX9YKg87D2IPYFFtUjhWIF8xD2gKMgx/XHUIIAQiBT1WMlEjBjICSA5gAH5WPVNhB2lVJQp7DSgPLAAwUGoAHQ1oWCoPOw9iD2BRbFI4ViBfMQ9oCjIMf1xlCDsENwU+ViVRIwYyAkgOYAB+Vj1TYQdpVSUKaw0zDzkAM1B9AB0NaFgqDzsPYg9gUWxSOFYgXzEPbAo5DGdcJAgkBCkFNFYxUWQGewJWDikAZFZkUzMHcVU8CnsNZg9hAGZQLQBkDSJYOA8wDykPYVEvUjlWZF8xD38KcQwoXGcIOgQxBThWNlEjBjICdQ5hADlWPVN0B2NVKQo4DWwPdwBnUHIAKQ1x')