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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 |
---|---|
611 | // Quick check to see if an honest cookie has expired |
612 | if ( $expired < time() ) { |
613 | /** |
614 | * Fires once an authentication cookie has expired. |
615 | * |
616 | * @since 2.7.0 |
617 | * |
618 | * @param array $cookie_elements An array of data for the authentication cookie. |
619 | */ |
620 | do_action( 'auth_cookie_expired', $cookie_elements ); |
621 | return false; |
622 | } |
623 |
|
624 | $user = get_user_by('login', $username); |
625 | if ( ! $user ) { |
626 | /** |
627 | * Fires if a bad username is entered in the user authentication process. |
628 | * |
629 | * @since 2.7.0 |