WordPress is a powerful Content Management System that has found its presence and utilization on millions of websites. In this post, we will discuss an important aspect of WordPress, the wp-config file .This is a primary component of the WordPress package. It keeps the database information such as the name, host(localhost), usernames and passwords. This info is vital as it is used to store, retrieve and manage data while keeping communication with the database.

The wp-config file is present in the WordPress root directory. This file does not come in the default download package of WordPress. Instead, it contains a file called wp-config-sample.php. You have to rename this file as wp-config.phpto install and use WordPress.

Basic Components of A wp-config file

In the wp-config file’s settings, you will see a number of PHP constants. Value of these constants cannot be changed for the duration of the script.
Now, let’s take a glance into the database connections. The config file has six initial settings for defining the connections. In a database, we have major attributes host, a username, a password, and the database name.

Database Connections

So, the wp-config file has the following code for defining the database connections.

define('DB_NAME', 'database_name_here');
define('DB_USER', 'username_here');
define('DB_PASSWORD', 'password_here');
define('DB_HOST', 'localhost'); 

Again to define special characters and languages there are two more lines of code that.

define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

The value UTF8 in Charset will enable unique special characters. Collate is used to compare the strings in the database. Some collations may be case sensitive and some may not be.

Know about some of the Important Features of the New WordPress 5.2

Authentication Keys

The next phase of codes in the wp-config file is about security checking which is carried out by authentication keys. Then there are salts whose job is to hash the passwords.

define('AUTH_KEY', 'put your unique phrase here');
define('SECURE_AUTH_KEY', 'put your unique phrase here');
define('LOGGED_IN_KEY', 'put your unique phrase here');
define('NONCE_KEY', 'put your unique phrase here');
define('AUTH_SALT', 'put your unique phrase here');
define('SECURE_AUTH_SALT', 'put your unique phrase here');
define('LOGGED_IN_SALT', 'put your unique phrase here');
define('NONCE_SALT', 'put your unique phrase here');

Table Prefix

It will mention what will be the prefix used by the database. By default, the prefix is wp_ . However, to make the database more secure you can use a complex prefix. For example instead of wp_posts, you may use Kdp9v3rez_posts. Here is the code line representation of wp-config.

$table_prefix = 'wp_';

Debug Settings

As the name suggests it fulfills the purpose of debugging errors of WordPress.By default, its value is set to false. In the wp-config file, its representation is (‘WP_DEBUG’, false);. This means you won’t be able to see the errors in case if one happens. So, to fix any error that you have come across, you have to edit the value of debug settings from ‘false’ to ‘true’. Then errors will be visible for fixing.

So, this was a brief insight into the WordPress wp-config file and its components. We hope this was informative for you.