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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 |
|---|---|
| 701 | * Filter the authentication cookie. |
| 702 | * |
| 703 | * @since 2.5.0 |
| 704 | * |
| 705 | * @param string $cookie Authentication cookie. |
| 706 | * @param int $user_id User ID. |
| 707 | * @param int $expiration Authentication cookie expiration in seconds. |
| 708 | * @param string $scheme Cookie scheme used. Accepts 'auth', 'secure_auth', or 'logged_in'. |
| 709 | */ |
| 710 | return apply_filters( 'auth_cookie', $cookie, $user_id, $expiration, $scheme ); |
| 711 | } |
| 712 | endif; |
| 713 | |
| 714 | if ( !function_exists('wp_parse_auth_cookie') ) : |
| 715 | /** |
| 716 | * Parse a cookie into its components |
| 717 | * |
| 718 | * @since 2.7.0 |
| 719 | * |