Answers for "The server requested authentication method unknown to the client [caching_sha2_password]")"

mysqli_real_connect(): The server requested authentication method unknown to the client [caching_sha2_password]

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';

The server requested authentication method unknown to the client [cachin g_sha2_password]

ALTER USER 'mysqlUsername'@'localhost' IDENTIFIED WITH mysql_native_password BY 'mysqlUsernamePassword';