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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 |
|---|---|
| 821 | add_theme_support('widgets'); |
| 822 | |
| 823 | /** |
| 824 | * Fires once a sidebar has been registered. |
| 825 | * |
| 826 | * @since 3.0.0 |
| 827 | * |
| 828 | * @param array $sidebar Parsed arguments for the registered sidebar. |
| 829 | */ |
| 830 | do_action( 'register_sidebar', $sidebar ); |
| 831 | |
| 832 | return $sidebar['id']; |
| 833 | } |
| 834 | |
| 835 | /** |
| 836 | * Removes a sidebar from the list. |
| 837 | * |
| 838 | * @since 2.2.0 |
| 839 | * |