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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 |
---|---|
705 |
|
706 | /** |
707 | * Fires once an authentication cookie has been validated. |
708 | * |
709 | * @since 2.7.0 |
710 | * |
711 | * @param array $cookie_elements An array of data for the authentication cookie. |
712 | * @param WP_User $user User object. |
713 | */ |
714 | do_action( 'auth_cookie_valid', $cookie_elements, $user ); |
715 |
|
716 | return $user->ID; |
717 | } |
718 | endif; |
719 |
|
720 | if ( !function_exists('wp_generate_auth_cookie') ) : |
721 | /** |
722 | * Generate authentication cookie contents. |
723 | * |