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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 |
|---|---|
| 746 | |
| 747 | /** |
| 748 | * Fires once an authentication cookie has been validated. |
| 749 | * |
| 750 | * @since 2.7.0 |
| 751 | * |
| 752 | * @param string[] $cookie_elements An array of data for the authentication cookie. |
| 753 | * @param WP_User $user User object. |
| 754 | */ |
| 755 | do_action( 'auth_cookie_valid', $cookie_elements, $user ); |
| 756 | |
| 757 | return $user->ID; |
| 758 | } |
| 759 | endif; |
| 760 | |
| 761 | if ( ! function_exists( 'wp_generate_auth_cookie' ) ) : |
| 762 | /** |
| 763 | * Generates authentication cookie contents. |
| 764 | * |