我提供的链接中的教程是在登录并出于某种原因创建新帐户后销毁facebook会话。我只需删除$facebook->destroySession（）；从这两部分开始，现在一切都按预期进行。

下面是教程中的代码，注释掉了这两行代码。

if ($fbuser) {


    $fb_registerpage_name = __(\'Facebook Register\', \'bloora\');
    $fbpage = get_page_by_title( $fb_registerpage_name );

    if(isset($user_profile[\'email\'])){
        $user_name = $user_profile[\'email\'];
        $user_email = $user_profile[\'email\'];
        $user_id = username_exists( $user_name );
        if ( !$user_id and email_exists($user_email) == false ) {
                $random_password = wp_generate_password( $length=12, $include_standard_special_chars=false );
                $user_id = wp_create_user( $user_name, $random_password, $user_email ); 
                wp_set_current_user( $user_id );
                wp_set_auth_cookie( $user_id );
               // $facebook->destroySession(); THIS HAS TO BE REMOVED

        } else {
                $random_password = __(\'User already exists.  Password inherited.\');

                wp_set_current_user( $user_id );
                wp_set_auth_cookie( $user_id );
               // $facebook->destroySession(); THIS HAS TO BE REMOVED!
        }
    }else{

        if(!is_admin() && isset($_POST) && count($_POST) > 0){

            if($fbpage){

                echo \'<script>if(window.location.href != "\'.get_permalink($fbpage->ID).\'"){ window.location.href = "\'.get_permalink($fbpage->ID).\'"; }</script>\';
            }else{
                // Create post object
                $my_post = array(
                  \'post_title\'    => $fb_registerpage_name,
                  \'post_content\'  => \'This is my post.\',
                  \'post_status\'   => \'publish\',
                  \'post_type\'   => \'page\',
                  \'post_author\'   => 1
                );

                // Insert the post into the database
                $fbpage = wp_insert_post( $my_post );
                echo \'<script>if(window.location.href != "\'.get_permalink($fbpage->ID).\'"){ window.location.href = "\'.get_permalink($fbpage->ID).\'"; }</script>\';

            }
        }
    }
}