WP CLI “Error establishing a database connection” in localhost (MAMP)

I get this error when I try to create something with WP CLI:

Error establishing a database connection. This either means that the username and password information in your `wp-config.php` file is incorrect or we can’t contact the database server at `localhost`. This could mean your host’s database server is down.

But I can open the site with the link: http://localhost:8888/projectname

Any idea?


Go into your wp-config.php and change your DB_HOST to instead of localhost.

Credit goes to Craig Wayne above in the comments.

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