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
恢复了一次数据库, 再运行程序浏览器上就出现了上面的错误
解决方法如下:
SET old_passwords =0; UPDATE mysql.user SET Password =PASSWORD('test') WHERE User='test' limit 1; SELECT LENGTH(Password) FROM mysql.user WHERE User='test'; FLUSH PRIVILEGES;
重启服务即可