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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 |
|---|---|
| 839 | * |
| 840 | * @type string $username User's username. |
| 841 | * @type string $expiration The time the cookie expires as a UNIX timestamp. |
| 842 | * @type string $token User's session token used. |
| 843 | * @type string $hmac The security hash for the cookie. |
| 844 | * @type string $scheme The cookie scheme to use. |
| 845 | * } |
| 846 | * @param WP_User $user User object. |
| 847 | */ |
| 848 | do_action( 'auth_cookie_valid', $cookie_elements, $user ); |
| 849 | |
| 850 | return $user->ID; |
| 851 | } |
| 852 | endif; |
| 853 | |
| 854 | if ( ! function_exists( 'wp_generate_auth_cookie' ) ) : |
| 855 | /** |
| 856 | * Generates authentication cookie contents. |
| 857 | * |