无法将Wordpress连接到MySQL数据库

Question

Doing some local website work to learn Wordpress theme development.

Tried to set up Wordpress through the prompts, also tried it by manually entering information in the wp-config.php file, neither would work. Still cannot connect to the database, the setup-config.php page returns "Error establishing a database connection". I've double, triple, and quadruple checked the login credentials (database name, username, password etc.), they are complete and correct. Deleted wp-config.php and tried again through the web page, same result.

MySQL is definitely running, the Mac System Preferences panel says so, and I can login and run SQL queries at the command line, although I have to do that as root. Should I be running MySQL as root?

This problem exists with Wordpress and also with an instance of phpMyAdmin that I've also installed, so I don't think it's anything to do with the PHP code as such, it smells more like a permissions thing. For what it's worth, I've edited my httpd.conf file to get Wordpress on port 80 and phpMyAdmin on 8081. Apache is serving those sites up as it should and PHP is running, it's just getting either site to connect to the database that's the problem.

System information:

Mac OS X 10.9.5 (Mavericks)

PHP Version 5.4.30

MySQL version: mysql Ver 14.12 Distrib 5.0.45, for apple-darwin9.2.0 (i686) using EditLine wrapper

Answer 1

在我的情况下，它就像更改DB_HOST一样简单，因此它在wp-config.php中使用了正确的主机和端口：

define('DB_HOST', '127.0.01:3306');

Answer 2

I found the solution on this stackoverflow page .

By default, Apache cannot send requests to a remote MySQL server. It should be enabled.

On CentOS 6 the solution is the command:

setsebool httpd_can_network_connect=1

Answer 3

Check your phpinfo(); to see if MySQL extension for php is installed.