function conectar(){
$host = "localhost";
$user = "root";
$pass = "";
$dbname = "vcBD2";

try {
    $opcoes = array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION);
    $pdo = new PDO("mysql:host=localhost;dbname=vcBD2;", "root", "", $opcoes);
} catch (Exception $e) {
    echo $e->getMessage();
}

return $pdo;

}