Verifies the Ajax request to prevent processing requests external of the blog.

Creates a cryptographic token tied to a specific action, user, user session, and window of time.

Gets the user cookie login. This function is deprecated.

Retrieve the current user object.

Get hash of given string.

Changes the current user by ID or name.

Verifies that a correct security nonce was used with time limit.

Filters the category nicename before it is sanitized.

Filters a user’s description before the user is created or updated.

Filters a user’s display name before the user is created or updated.