Problema con una query

[brodik]

prima devi aprire una connessione al db
poi devi connetterti al database

ATTENZIONE:

This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:
    
mysqli_select_db()
PDO::__construct() (part of dsn)