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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 |
|---|---|
| 869 | add_theme_support('widgets'); |
| 870 | |
| 871 | /** |
| 872 | * Fires once a sidebar has been registered. |
| 873 | * |
| 874 | * @since 3.0.0 |
| 875 | * |
| 876 | * @param array $sidebar Parsed arguments for the registered sidebar. |
| 877 | */ |
| 878 | do_action( 'register_sidebar', $sidebar ); |
| 879 | |
| 880 | return $sidebar['id']; |
| 881 | } |
| 882 | |
| 883 | /** |
| 884 | * Removes a sidebar from the list. |
| 885 | * |
| 886 | * @since 2.2.0 |
| 887 | * |