$dbn = "DBNAMEHERE";
$dbh = "ADDRESSHERE";
$dbu = "USERNAMEHERE";
$dbp = "PASSWORDHERE";

try {
	$dbc = new PDO("mysql:dbname={$dbn};host={$dbh}", $dbu, $dbp);
} catch (PDOException $e) {
	echo "Connection failed: " . $e->getMessage();
}