php7.3連接MySQL8.0報錯 PDO::__construct(): The server requested authentication method unknown to the client [caching_sha2_password]

報的錯誤：

In Connection.php line 664:

  SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client (SQL: select * from information_schema.tables where table_schema = move and table_name = migrations and table_type = 'BASE TABLE')


In PDOConnection.php line 31:

  SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client


In PDOConnection.php line 27:

  SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client


In PDOConnection.php line 27:

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

 

原因：

mysql8默認的使用密碼認證方式不一樣，mysql8.0默認使用caching_sha2_password，但是之前版本都是使用mysql_native_password

解決方案

修改caching_sha2_password為mysql_native_password

select user,host,plugin from mysql.user;

 

 　　

我這里執行了兩句修改，修改root身份的“localhost”和“%”，代碼如下：

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

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

　　

 

 

執行成功：