W3cubDocs

apply_filters( 'salt', string $cached_salt, string $scheme )

Filters the WordPress salt.

$cached_salt: (string) Cached salt for the given scheme.
$scheme: (string) Authentication scheme. Values include 'auth', 'secure_auth', 'logged_in', and 'nonce'.

Used By	Description
wp-includes/pluggable.php: wp_salt()	Returns a salt to add to hashes.

Version	Description
2.5.0	Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/salt