What is the wp-config.php file?

wp-config.php sits in the root folder of the site. It holds:

• The database name, user, password and host (DB_NAME, DB_USER, DB_PASSWORD, DB_HOST).
• The security keys and salts.
• The table prefix ($table_prefix).
• Options like WP_DEBUG, WP_MEMORY_LIMIT and DISALLOW_FILE_EDIT.

It is created during the install from wp-config-sample.php. Keep it private and back it up. See The wp-config.php File.

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