db class

<?php

class database {

    private $hostname = '127.0.0.1';
    private $username = 'root';
    private $password = '************';
    private $database = 'womj';
    private $connection = null;

    public function __construct() {
        try {
            $this->connection = new PDO('mysql://' . $this->hostname . '/' . $this->database, $this->username, $this->password);
        } catch (PDOException $ex) {
            exit($ex->getMessage());
        }
    }

    public function fetchResults($query) {
        $stmt = $this->connection->prepare($query);
        $params = array_splice(func_get_args(), 1);

        $stmt->execute($params);

        return $stmt->fetchAll(PDO::FETCH_OBJ);
    }

}