mysqlnd的旧版本使用传统数据库密码。在mysqlnd插件从Wordpress 5.0.3连接到php 7.3之前,我必须更新数据库以使用更安全的密码格式
PHP Warning: mysqli::__construct(): (HY000/2000): 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 in /root/db-test.php on line 2