在wordpress中使用用户的订户角色登录

Question

只希望订阅者的角色用户登录该应用。我不知道在wordpress中获得订阅者角色。这是我的代码

$u_name = $_POST['userName'];
$password = $_POST['password'];
$username = $u_name;

//$tokenID = $_GET['tokenID'];
$vendor_list = array();
if ( username_exists( $username ) ) 
    {

       $user = get_user_by( 'login', $username );

       if ( $user && wp_check_password( $password, $user->user_pass, $user->ID) ) 
        {
        $email = $user->user_email;
        $vendor_list[] = array("userID"=>$user->ID,"userName" =>$username,"email" =>$email);
        echo json_encode($vendor_list);
        }
        else 
        {
        $testing = 2;
        echo json_encode($testing);
        }
    }
    else
    {
        $testing = 1;
        echo json_encode($testing);
    }

Answer 1

$u_name = $_POST['userName'];
$password = $_POST['password'];
$username = $u_name;

//$tokenID = $_GET['tokenID'];
$vendor_list = array();
if ( username_exists( $username ) ) 
    {

       $user = get_user_by( 'login', $username );

       if ( $user && wp_check_password( $password, $user->user_pass, $user->ID) && ) 
        {
        $users = wp_get_current_user();
            if(in_array( 'subscriber', (array) $users->roles ) )
            {
                $email = $user->user_email;
                $vendor_list[] = array("userID"=>$users->ID,"userName" =>$username,"email" =>$email);
                echo json_encode($vendor_list);
            }
            else
            {
                $testing = 3;
                echo json_encode($testing);
            }
        }
        else 
        {
        $testing = 2;
        echo json_encode($testing);
        }
    }
    else
    {
        $testing = 1;
        echo json_encode($testing);
    }