1. First stop the mysql service
2. Edit the configuration file my.cnf
Add skip-grant-tables in [mysqld] Configuration item, the function of this configuration is to "adjust the restrictions of the permission table, log in data directly without password verification", but do not forget to delete this item in the production environment.
3. Start msyql service
Log in to the database, you don’t need a password, you can enter the database directly.
4. Change the password
Directly execute:
update mysql.user set authentication_string=password('123456') where user='root' and host='localhost'; flush privileges;
5. Delete the skip-grant-tables configuration item in my.cnf and restart the mysql service
6. You can use the new password to log in to the database.
Recommended tutorial: "mysql tutorial"http://www.php.cn/course/list/51.html
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