Untitled

------------------------------------------
connect.php
------------------------------------------
<?php
/*****************
 *
 * Connect to MySQL
 * Author: codekK
 *
*****************/
class DBconfig {
    private $conn = null;
    private $server = "server"; // Server MySQL
    private $user = "user"; // Username MySQL
    private $pass = "pass"; // Password MySQL
    private $db = "db"; // DB MySQL

    public function newConn(){
        // Setting up connection
        if(!isset($this->conn)){
            try {
                $this->conn = new PDO("mysql:dbname={$this->db};host={$this->server}",$this->user,$this->pass);
                $this->conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        // Error
            } catch (PDOException $e){
                return false;
            }
        }
    return $this->conn;
    }
}
?>
------------------------------------------
index.php
------------------------------------------
<html>
    <head>
        <title>Hello</title>
    </head>
    <body>
        <h1>Hello</h1>
        <?php
        require_once("connect.php");
        $db = new DBconfig();
        $conn = $db->newConn();

        $query = $conn->prepare("SELECT usuario FROM users_liberaciones");
        while ($row = $query->fetch()):
            echo $row['usuario'];
        endwhile;
        ?>

    </body>
</html>