php - 对 MySQL session /用户的文件权限

Question

当有人在我的 MySQL 数据库中注册时，此功能必须有效:

mysql_query("SELECT mail 
               FROM users 
               INTO OUTFILE 'test.txt'");

但是我得到了错误

Access denied for user 'registerdb'@'%' (using password: YES)

那么我如何将 FILE 写入权限授予 session /用户？

Answer 1

检查该用户的权限:

SHOW GRANTS FOR 'registerdb'@'%'

如果没有列出的FILE权限，直接添加:

GRANT FILE ON . to 'registerdb'@'%'

然后:

FLUSH PRIVILEGES;

但是请注意，通过对 *.* 授予 FILE 权限，您实际上是 giving that user full access to any file the server .

限制limit the location in which files can be read and written, set the secure_file_priv system to a specific directory .