connecting database

@techniner and @nav33n pointed toward the usual WAMP default administrative account — that was a good first hint. An "access denied" from PHP usually means one of three things: the credentials are wrong, the MySQL server is not accepting connections from the host you used, or the account lacks privileges for the database you asked for. See the MySQL troubleshooting notes on "Access denied" for precise error reasons and matching fixes (MySQL docs).

Quick, practical checklist:

• Verify MySQL is running (WAMP tray icon / Services) and that Apache/PHP are using the same PHP build as WAMP.
• Open phpMyAdmin (http://localhost/phpmyadmin/) to inspect users and reset the administrative password or create a new, limited user for your application. If phpMyAdmin fails to open, check the MySQL error log and restart the service.
• Avoid using an administrative account for your application; create a dedicated DB user with only the needed privileges (see MySQL "CREATE USER" guidance (MySQL docs)).

For current PHP versions prefer modern APIs instead of the old mysql_* functions. Example using PDO:

try {
    $pdo = new PDO('mysql:host=127.0.0.1;dbname=your_db;charset=utf8', 'app_user', 'password');
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}

This gives better error handling and security.