报错信息：
mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file

网上说
SET old_passwords = 0;
UPDATE mysql.user SET password = PASSWORD(`password`) WHERE user = `user`;
FLUSH PRIVILEGES;

这个是虚拟主机，没法执行这个命令，没权限

求大神给个解决办法，拜谢。