我有一个使用子目录设置运行多站点的网站。我刚刚尝试将我的站点更新到 4.7.2 并且更新通过并且在安装过程中没有发生错误，但是在安装完成后我被重定向到 /wp-admin/network/about.php?updated ，它返回一个404 页面。因此，我尝试返回 /wp-admin/ 并收到重定向循环错误。
我浏览了至少 40 篇关于 WordPress 多站点 wp-admin 重定向循环问题的不同文章、论坛和网站。我已经尝试了所有可能找到的方法来解决此问题，但没有任何效果。主站点运行良好，但 wp-admin 完全无法访问。
以下是我迄今为止尝试过的事情：
- 我尝试多次清除缓存和 cookie，但该站点未使用任何缓存插件
- 我将我的插件文件夹重命名为 plugins.deactivate 为了更加彻底，我还将 wp_options 表中的 active_plugins 字段更新为 a:0:{}
- 我尝试从我的 wp-config.php 文件中删除多站点定义，但是当这没有效果时，我将它们放回去
- 我确认我的 .htaccess 文件与此处列出的 3.5+ 多站点文件相匹配 – https://codex.wordpress.org/Multisite_Network_Administration#.htaccess_and_Mod_Rewrite
- 为了以防万一，我还尝试将其切换到旧版本，但这没有任何作用，所以我将其切换回来。
- 我发现一个论坛说他们通过在 /wp-admin/network/admin.php 底部注释掉重定向来解决问题，所以我尝试了，但它什么也没做，所以我取消注释它恢复正常。
- 我发现另一个论坛说您需要在 wp-config.php 中定义 cookie 路径。所以我尝试通过将下面的代码添加到我的 wp-config.php 中，但它也没有工作，所以我删除了它。
我试过的cookie路径代码：
define('ADMIN_COOKIE_PATH', '/');
define('COOKIE_DOMAIN', '');
define('COOKIEPATH', '');
define('SITECOOKIEPATH', '');
这是我的 .htaccess 文件：
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
这是我的 wp-config.php 文件：
<?php
/**
* The base configuration for WordPress
*
* The wp-config.php creation script uses this file during the
* installation. You don't have to use the web site, you can
* copy this file to "wp-config.php" and fill in the values.
*
* This file contains the following configurations:
*
* * MySQL settings
* * Secret keys
* * Database table prefix
* * ABSPATH
*
* @link https://codex.wordpress.org/Editing_wp-config.php
*
* @package WordPress
*/
// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'DBNAME');
/** MySQL database username */
define('DB_USER', 'DBUNAME');
/** MySQL database password */
define('DB_PASSWORD', 'DBPASS');
/** MySQL hostname */
define('DB_HOST', 'DBHOST');
/** Database Charset to use in creating database tables. */
define('DB_CHARSET', 'utf8');
/** The Database Collate type. Don't change this if in doubt. */
define('DB_COLLATE', '');
/**#@+
* Authentication Unique Keys and Salts.
*
* Change these to different unique phrases!
* You can generate these using the {@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org secret-key service}
* You can change these at any point in time to invalidate all existing cookies. This will force all users to have to log in again.
*
* @since 2.6.0
*/
define('AUTH_KEY', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
define('SECURE_AUTH_KEY', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
define('LOGGED_IN_KEY', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
define('NONCE_KEY', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
define('AUTH_SALT', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
define('SECURE_AUTH_SALT', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
define('LOGGED_IN_SALT', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
define('NONCE_SALT', 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
/**
* Other customizations.
*/
define('FS_METHOD','direct');define('FS_CHMOD_DIR',0777);define('FS_CHMOD_FILE',0666);
define('WP_TEMP_DIR',dirname(__FILE__).'/wp-content/uploads');
/**
* Turn off automatic updates since these are managed upstream.
*/
define('AUTOMATIC_UPDATER_DISABLED', true);
/**#@-*/
/**
* WordPress Database Table prefix.
*
* You can have multiple installations in one database if you give each
* a unique prefix. Only numbers, letters, and underscores please!
*/
$table_prefix = 'XXXXXX';
/**
* For developers: WordPress debugging mode.
*
* Change this to true to enable the display of notices during development.
* It is strongly recommended that plugin and theme developers use WP_DEBUG
* in their development environments.
*
* For information on other constants that can be used for debugging,
* visit the Codex.
*
* @link https://codex.wordpress.org/Debugging_in_WordPress
*/
define('WP_DEBUG', false);
define('WP_ALLOW_MULTISITE', true);
define('MULTISITE', true);
define('SUBDOMAIN_INSTALL', false);
define('DOMAIN_CURRENT_SITE', $_SERVER['HTTP_HOST']);
define('PATH_CURRENT_SITE', '/');
define('SITE_ID_CURRENT_SITE', 1);
define('BLOG_ID_CURRENT_SITE', 1);
/* That's all, stop editing! Happy blogging. */
/** Absolute path to the WordPress directory. */
if ( !defined('ABSPATH') )
define('ABSPATH', dirname(__FILE__) . '/');
/** Sets up WordPress vars and included files. */
require_once(ABSPATH . 'wp-settings.php');