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Why is MySQL 8.0 Giving Me 'The Server Requested Authentication Method Unknown to the Client' Error When Connecting from PHP?

Susan Sarandon
Release: 2024-12-11 14:37:10
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Why is MySQL 8.0  Giving Me

PHP Connectivity Issues with MySQL 8.0 : Unveiling "The Server Requested Authentication Method Unknown to the Client" Error

When connecting to a MySQL database from PHP, you may encounter the frustrating error "The server requested authentication method unknown to the client." This error typically occurs when the server and client are attempting to authenticate using different methods.

The default authentication plugin for MySQL 8 is auth_socket, which is incompatible with most PHP applications that expect to log in using a password. To resolve this issue, you can modify the authentication plugin to mysql_native_password by executing the following SQL command:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password
BY 'password';
Copy after login

Replace 'password' with your MySQL root password or the password for the user your PHP application uses.

Once you make this change, your PHP application should be able to connect to your MySQL database without encountering the "authentication method unknown" error. For further insights into this issue and potential workarounds, you may refer to the Digital Ocean article on MySQL installation and configuration.

The above is the detailed content of Why is MySQL 8.0 Giving Me 'The Server Requested Authentication Method Unknown to the Client' Error When Connecting from PHP?. For more information, please follow other related articles on the PHP Chinese website!

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