How to log-in with encrypted passwords [duplicate]

I made a login and register system, it works, it encrypts the password using bcrypt, but when I go to login it only works with the encrypted password so I have to go to the database and copy it.

This is my login and to help next is Register. I tried to put the password_hash in the login too but when doing that I can’t login.

<label for="password">Password:</label>
<input type="password" id="password" name="password" ><br><br>
<input type="submit" name="login" value="Login">

if (isset($_POST['login'])) {
    $username = $_POST['username'];
    $password = password_hash($_POST['password'], PASSWORD_DEFAULT);
    
    $stmt = $conn->prepare("SELECT * FROM users WHERE username=? AND password=?");
    $stmt->bind_param("ss", $username, $password);
    $stmt->execute();
    $result = $stmt->get_result();
    
    
    if (mysqli_num_rows($result) == 1) {
      echo "Login successful";
      header("Location: forminicio.php");
    } else {
        echo "Invalid username or password";
    }
}

Register

if (isset($_POST['register'])) {

    $data['username'] = ($_POST['username']);
    $data['password'] = password_hash($_POST['password'], PASSWORD_DEFAULT);
    
    $username = $data['username'];
    $password = $data['password'];
    
    
    $sql = "INSERT INTO users (username, password) VALUES ('$username', '$password')";
    if (mysqli_query($conn, $sql)) {
        echo "New user created successfully";
    } else {
        echo "Error creating user: " . mysqli_error($conn);
    }
}