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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
726 | * to be valid as they come directly from a client-provided cookie value. |
727 | * |
728 | * @type string $username User's username. |
729 | * @type string $expiration The time the cookie expires as a UNIX timestamp. |
730 | * @type string $token User's session token used. |
731 | * @type string $hmac The security hash for the cookie. |
732 | * @type string $scheme The cookie scheme to use. |
733 | * } |
734 | */ |
735 | do_action( 'auth_cookie_expired', $cookie_elements ); |
736 | return false; |
737 | } |
738 |
|
739 | $user = get_user_by( 'login', $username ); |
740 | if ( ! $user ) { |
741 | /** |
742 | * Fires if a bad username is entered in the user authentication process. |
743 | * |
744 | * @since 2.7.0 |