如何使用php和xampp登录您的帐户？

Question

Hey guys I've been stuck on this problem for a while, now my code seems fine but I cant log in using the combination of 'number' and password.....if I just use 'number' alone it logs in but if I add the query....AND palavrapass="$password"; it doesn't work. Here's my code for you guys to take a look, maybe you can see something I cant :

if (count($errors)==0) {
    $password = md5($password);
    $query= " SELECT * FROM usuario WHERE numero='$numero' AND palavrapass= '$password' ";
    $result= mysqli_query($db,$query);
    if(mysqli_num_rows($result) ==1)
    {
        $_SESSION['nome'] = $nome;
        $_SESSION['ultimonome'] = $ultimonome;
        $_SESSION['numero'] = $numero;
        header('location: pindex.php');
    }
    else{
        array_push($errors, "combinação incorreta de número / senha");
    }
}