wp_salt()

wp_salt() — Returns a salt to add to hashes. Salts are created using secret keys. Secret keys are located in two places: in the database and in the wp-config.php file. The secret key in the database is randomly generated and will be appended to the secret keys in wp-config.php. The secret keys in wp-config.php should be updated to strong, random keys to maximize security. Below is an example of how the secret key constants are defined. Do not paste this example directly into wp-config.php.

Inputs: $scheme (string): Authentication scheme (auth, secure_auth, logged_in, nonce).

Returns string: Salt value