强制 wordpress 通过 TCP 连接到数据库

Question

我正在尝试将在我的机器上运行的 wordpress 连接到远程 mysql 数据库，该数据库在我的机器（本地主机）上建立隧道。数据库连接通过向mysql CLI 客户端提供以下参数来工作

$ mysql --protocol=TCP -P 10000 -h localhost -u username -p'password' db_name

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mysql> show databases;
+-----------------------------------+
| Database                          |
+-----------------------------------+
| information_schema                |
| db_name                           |
+-----------------------------------+
2 rows in set (1.38 sec)

在 wordpress 的wp-config.php 文件中，我尝试了以下值：

define('DB_NAME', 'db_name');
define('DB_USER', 'username');
define('DB_PASSWORD', 'password');
define('DB_HOST', 'localhost');
define('DB_PORT', 10000);

这不起作用并引发以下错误：

Warning: include(/home/gaurish/Dropbox/code/projects/blog/wp-content/advanced-cache.php): failed to open stream: No such file or directory in /home/gaurish/Dropbox/code/projects/blog/wp-settings.php on line 62 
Warning: include(): Failed opening '/home/gaurish/Dropbox/code/projects/blog/wp-content/advanced-cache.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /home/gaurish/Dropbox/code/projects/blog/wp-settings.php on line 62 
Warning: mysql_connect(): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) in /home/gaurish/Dropbox/code/projects/blog/wp-includes/wp-db.php on line 1038

上述错误中的最后一行 (Can't connect to local MySQL server through socket) 给出了连接失败的原因，因为 wordpress 试图通过 unix 套接字进行连接。

现在，我需要设置哪些参数才能让 wordpress 以mysql CLI 客户端的方式连接到数据库？

Answer 1

我能够使用wp-config.php 中的以下设置进行连接。

define('DB_NAME', 'db_name');
define('DB_USER', 'username');
define('DB_PASSWORD', 'password');
define('DB_HOST', '127.0.0.1:10000');
define('DB_PORT', 10000);

数据库连接成功:)

Answer 2

如果您想通过 TCP 而不是 Unix 套接字进行连接，请尝试将主机从 localhost 更改为 127.0.0.1。

define('DB_HOST', '127.0.0.1');  // forces TCP