<?php

    $host = "localhost";
    $username = "root";
    $password = "";

    $conn = MYSQL_CONNECT( $host, $username, $password);

    if(!$conn){

        die("Errore: ".MYSQL_ERROR());

    }

    $db = MYSQL_SELECT_DB("nomedatabase", $conn);

    if(!$db){

        die("Errore: ".MYSQL_ERROR());

    }

    MYSQL_CLOSE($conn);

?>