use Db\Connection; $db = new Connection('localhost', 'username', 'password', 'dbname');
use Db\Query; $query = new Query($db); $result = $query->select('*') ->from('users') ->where('id', '=', 1) ->execute(); print_r($result);This code example creates a new instance of the Query class, which takes in the database connection object as a parameter. The query builder methods are used to create a SELECT statement that selects all columns from the users table where the id column equals 1. The execute method is called to execute the query and return the result set. The package library for PHP Db instance is likely DBAL (Database Abstraction Layer) which is a component of the Doctrine ORM (Object-Relational Mapping) library. However, it's important to note that there are multiple libraries that provide similar functionality for managing database connections and executing queries in PHP, so it's possible that the code examples above could be using a different package.