Question

很抱歉这个问题不断更新！从现在开始我将独自离开。

我可以通过Facebook登录将新用户注册到我的Wordpress数据库中。但我很难将用户登录到Wordpress。

它应该通过wp_signon（$ credentials，$ secure_cookie）来完成，但是我没有让WordPress用户登录到Wordpress。用户仍然需要通过Wordpress登录表单。

我收到的错误消息是

Warning: Cannot modify header information - headers already sent by (output started at 
.../file shown below.php:36) in ..../wp-includes/pluggable.php on line 680-682

非常感谢任何帮助！

<?php
try{
include_once "src/fbaccess.php";
}catch(Exception $e){
error_log($e);
}
try{
require_once "wp-blog-header.php";
}catch(Exception $e){
error_log($e);
}

try{
require_once "wp-includes/registration.php";
}catch(Exception $e){
error_log($e);
}

try{
require_once "wp-includes/user.php";
}catch(Exception $e){
error_log($e);
}

?>

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
    <title>Florian's Facebook login</title>    

</head>
<body>
<!-- Copy the below code to display FB Login/Logout button -->
<?php if ($user): ?>
  <a href="<?php echo $logoutUrl; ?>">Logout</a>
<?php else: ?>
  <div>
  <a href="<?php echo $loginUrl; ?>">Login with Facebook</a>
  </div>
<?php endif ?>
<!-- Copy the above code to display FB Login/Logout button -->

<h3>PHP Session</h3>
<pre><?php print_r($_SESSION); ?></pre>

<?php if ($user): ?>
  <h3>You</h3>
  <img src="https://graph.facebook.com/<?php echo $user; ?>/picture">

  <h3>Your User Object (/me)</h3>
   <?php $newusername = $user_profile [first_name]; ?>
<?php $newlastname = $user_profile [last_name]; ?>
   <?php $newemail    = $user_profile [email]; ?>
   <?php $newlocation = $user_profile [location]; ?>

<?php else: ?>
  <strong><em>You are not Connected.</em></strong>
<?php endif ?>

<?php
$newpassword = '1234';

$creds = array();
$creds['user_login'] = $newusername;
$creds['user_password'] = $newpassword;
if ( !empty( $remember ) ){ 
    $creds['remember'] = true;
}

$userWP = wp_signon( $creds, true );

if( is_wp_error( $userWP ) ) {
    echo $user->get_error_message();
}
else {
}
{
// Check that user doesn't already exist
if ( !username_exists($newusername) && !email_exists($newemail) )
{
// Create user and set role to subscriber

$user_id = wp_create_user( $newusername, $newpassword, $newemail);
if ( is_int($user_id) )
{
  $wp_user_object = new WP_User($user_id);
  $wp_user_object->set_role('subscriber');
  echo 'Successfully created new subscriber user.';
 }

else {
   echo 'Error with wp_create_user. No users were created.';
}
}
else {
   echo 'This user or email already exists. Nothing was done.';
}
}

?>
</body>
</html>

Answer 1

如果登录失败，您可能需要查看以下内容：

if ( is_wp_error($userWP) )
   echo $user->get_error_message();

wp_signon可以返回WP_User或WP_Error，如您在此处所见http://core.trac.wordpress.org/browser/tags/3.4.2/wp-includes/user.php#L55

您可能还想查看http://codex.wordpress.org/Function_Reference/wp_signon

请发布WP_Error消息，我们会找到一种方法：）

以Wordpress用户身份登录Facebook用户

1 个答案: